求40道初二数学因式分解计算题还有答案（简单点的） 给我初二数学因式分解练习题50道
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A.0\u4e2a B.1\u4e2a C.2\u4e2a D.5\u4e2a
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A\uff0e B\uff0e C\uff0e D\uff0e
7\u3001\u628a\u591a\u9879\u5f0f \u5206\u89e3\u56e0\u5f0f\u7684\u7ed3\u679c\u662f\uff08 \uff09
A\uff0e B\uff0e C\uff0e D\uff0e
8\u3001\u628a\u4e00\u4e2a\u591a\u9879\u5f0f\u5316\u6210\u51e0\u4e2a\u6574\u5f0f_______\u7684\u5f62\u5f0f\uff0c\u53eb\u505a\u628a\u8fd9\u4e2a\u591a\u9879\u5f0f\u56e0\u5f0f\u5206\u89e3.
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10\u3001\u5206\u522b\u5199\u51fa\u4e0b\u5217\u591a\u9879\u5f0f\u7684\u516c\u56e0\u5f0f\uff1a
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11\u3001\u5df2\u77e5a\uff0bb\uff1d13\uff0cab\uff1d40,\u5219 \u7684\u7ed3\u679c\u4e3a______________.
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2\u3001D\uff08\u70b9\u62e8\uff1a\u770b\u80fd\u5426\u4f7f\u7528\u63d0\u516c\u56e0\u5f0f\u6cd5\u56e0\u5f0f\u5206\u89e3\u7684\u5173\u952e\u662f\u591a\u9879\u5f0f\u4e2d\u5404\u9879\u662f\u5426\u6709\u516c\u56e0\u5f0f\u7684\u5b58\u5728\uff09 3\u3001B\uff08\u70b9\u62e8\uff1a\u516c\u56e0\u5f0f\u7684\u7cfb\u6570\u53d6\u5404\u7cfb\u6570\u7684\u6700\u5927\u516c\u7ea6\u6570\uff0c\u76f8\u540c\u5b57\u6bcd\u53d6\u6700\u4f4e\u6307\u6570\u5e42\uff0c\u4fdd\u8bc1\u63d0\u53d6\u540e\u7684\u591a\u9879\u5f0f\u7b2c\u4e00\u9879\u7b26\u53f7\u4e3a\u6b63\uff09
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5\u3001D\uff08\u70b9\u62e8\uff1a\u53ef\u7528 \u9664\u4ee5 \uff09
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9\u3001314
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11\u3001520
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A\uff0e B\uff0e C\uff0e D\uff0e
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C\uff0e D\uff0e
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A\uff0e B\uff0e C\uff0e D\uff0e
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A\uff0e3\u4e2a B\uff0e4\u4e2a C\uff0e5\u4e2a D\uff0e6\u4e2a
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9\u3001\u5206\u89e3\u56e0\u5f0f\uff1a \uff1d________________.
10\u3001\u5229\u7528\u56e0\u5f0f\u5206\u89e3\u8ba1\u7b97\uff1a \uff1d_____________.
11\u3001\u5df2\u77e5 \uff0c \uff0c\u5219x\uff1d________\uff0cy\uff1d__________.
12\u3001\u5df2\u77e5 \uff0c \uff0c\u5219\u4ee3\u6570\u5f0f \u7684\u503c\u4e3a_______________.
15.4\u7b2c2\u8bfe\u65f6\u53c2\u8003\u7b54\u6848\uff1a
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2\u3001D\uff08\u70b9\u62e8\uff1a\u539f\u5f0f\uff1d \uff09
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6\u3001C\uff08\u70b9\u62e8\uff1a \uff1d \uff09
7\u3001
8\u3001 \uff0d
9\u3001
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11\u3001
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1\u3001\uff08 \uff092\uff0b20xy\uff0b25 \uff1d( )2.
2\u3001\u5df2\u77e5 \uff0c\u5219 \uff1d__________.
3\u3001\u5df2\u77e5 \uff0c\u5219x\uff0by\uff1d________.
4\u3001\u82e5 \u662f\u5b8c\u5168\u5e73\u65b9\u5f0f\uff0c\u5219\u5b9e\u6570m\u7684\u503c\u662f\uff08 \uff09
A\uff0e\uff0d5 B\uff0e3 C\uff0e7 D\uff0e7\u6216\uff0d1
5\u3001\u82e5\u4e8c\u9879\u5f0f \u52a0\u4e0a\u4e00\u4e2a\u5355\u9879\u5f0f\u540e\u6210\u4e3a\u4e00\u4e2a\u5b8c\u5168\u5e73\u65b9\u5f0f\uff0c\u5219\u8fd9\u6837\u7684\u5355\u9879\u5f0f\u5171\u6709\uff08 \uff09
A\uff0e1\u4e2a B\uff0e2\u4e2a C\uff0e3\u4e2a D\uff0e4\u4e2a
6\u3001\u5229\u7528\u56e0\u5f0f\u5206\u89e3\u8ba1\u7b97: \uff1d_______________.
7\u3001\u5728\u5b9e\u6570\u8303\u56f4\u5185\u5206\u89e3\u56e0\u5f0f\uff1a \uff1d_____________________.
8\u3001\u5c06\u4e0b\u5217\u5404\u5f0f\u56e0\u5f0f\u5206\u89e3
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9\u3001\u5206\u89e3\u56e0\u5f0f\uff1a \uff1d\uff08 \uff09 , \uff08 \uff09\uff0d20(x\uff0by)\uff1d\uff08 \uff09 .
10\u3001\u56e0\u5f0f\u5206\u89e3 \u7684\u7ed3\u679c\u4e3a_________________________.
11\u3001\u5df2\u77e5x\uff0by\uff1d7\uff0cxy\uff1d10.\u6c42
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12\u3001\u5982\u679c \uff0c\u6c42 \u7684\u503c.
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1\u30012x 2x\uff0b5y
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6\u300190000
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10\u3001
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1\u3001\u4e0b\u5217\u4ece\u5de6\u5230\u53f3\u7684\u53d8\u5f62\u662f\u5206\u89e3\u56e0\u5f0f\u7684\u662f\uff08 \uff09
A\uff0e B\uff0e
C\uff0e D\uff0e
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A\uff0e2003 B\uff0e2002 C\uff0e2001 D\uff0e1001
3\u3001\u5df2\u77e5m\uff0dn\uff1d3\uff0cmn\uff1d1,\u5219 \u7684\u503c\u4e3a\uff08 \uff09
A\uff0e5 B\uff0e7 C\uff0e9 D\uff0e11
4\u3001\u5c06\u591a\u9879\u5f0f \u5206\u89e3\u56e0\u5f0f\u4e3a\uff08 \uff09
A\uff0e B\uff0e
C\uff0e D\uff0e
5\u3001\u5982\u679c4x\uff0d3\u662f\u591a\u9879\u5f0f \u7684\u4e00\u4e2a\u56e0\u5f0f\uff0c\u5219a\u7b49\u4e8e\uff08 \uff09
A\uff0e\uff0d6 B\uff0e6 C\uff0e\uff0d9 D\uff0e9
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6\u3001\u5206\u89e3\u56e0\u5f0f\uff1a \uff1d______________________.
7\u3001\u591a\u9879\u5f0f \uff0c \u7684\u516c\u56e0\u5f0f\u662f__________________.
8\u3001\u7528\u5206\u89e3\u56e0\u5f0f\u6cd5\u8ba1\u7b97 \uff1d__________________.
9\u3001\u591a\u9879\u5f0f \u52a0\u4e0a\u4e00\u4e2a\u5355\u9879\u5f0f\u540e\uff0c\u4f7f\u5b83\u80fd\u6210\u4e3a\u4e00\u4e2a\u6574\u5f0f\u7684\u5b8c\u5168\u5e73\u65b9\uff0c\u90a3\u4e48\u52a0\u4e0a\u7684\u5355\u9879\u5f0f\u53ef\u4ee5\u662f_______________________\uff08\u586b\u4e0a\u4e00\u4e2a\u4f60\u8ba4\u4e3a\u6b63\u786e\u7684\u5373\u53ef\uff09
10\u3001\u5df2\u77e5\u591a\u9879\u5f0f \u5206\u89e3\u56e0\u5f0f\u7684\u7ed3\u679c\u662f \uff0c\u5219a\uff1d______\uff0cb\uff1d______\uff0cc\uff1d_________.
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11\u3001\uff088\u5206\uff09\u5206\u89e3\u56e0\u5f0f
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12\u3001\uff088\u5206\uff09\u8ba1\u7b97:
13\u3001\uff088\u5206\uff09\u5df2\u77e5 \uff0c \uff0c\u5219 \u7684\u503c\u662f\u591a\u5c11\uff1f
\u7efc\u5408\u521b\u65b0
14\u3001\uff088\u5206\uff09\u8bc1\u660e\uff1a \u80fd\u88ab13\u6574\u9664.
15\u3001\uff088\u5206\uff09\u82e5\u591a\u9879\u5f0f \u5206\u89e3\u56e0\u5f0f\u5f97 \uff0c\u6c42\uff1a \u7684\u503c.
\u4e2d\u8003\u94fe\u63a5
16\uff0e\uff082007\u56db\u5ddd\u5fb7\u9633\uff09\u5df2\u77e5 \uff0c\u5219 \u7684\u503c\u662f\uff08 \uff09
A\uff0e B\uff0e C\uff0e D\uff0e
17\uff0e\uff082007\u4e91\u5357\uff09\u5df2\u77e5x+y = \u20135\uff0cxy = 6\uff0c\u5219 \u7684\u503c\u662f\uff08 \uff09
A\uff0e B\uff0e C\uff0e D\uff0e
18\uff0e\uff082007\u5e7f\u4e1c\u6cb3\u6c60\uff09\u5206\u89e3\u56e0\u5f0f\uff1a \uff0e
19\uff0e \uff082007\u5c71\u4e1c\u70df\u53f0\uff09\u8bf7\u4f60\u5199\u4e00\u4e2a\u80fd\u5148\u63d0\u516c\u56e0\u5f0f\u3001\u518d\u8fd0\u7528\u516c\u5f0f\u6765\u5206\u89e3\u56e0\u5f0f\u7684\u4e09\u9879\u5f0f\uff0c\u5e76\u5199\u51fa\u5206\u89e3\u56e0\u5f0f\u7684\u7ed3\u679c \uff0e
20\uff0e (2007\u5b89\u5fbd\u829c\u6e56)\u56e0\u5f0f\u5206\u89e3\uff1a \uff0e
15\uff0e4\u672c\u8282\u81ea\u6d4b\u53c2\u8003\u7b54\u6848\uff1a
\u592f\u5b9e\u57fa\u7840
1\u3001C\uff08\u70b9\u62e8\uff1a\u56e0\u5f0f\u5206\u89e3\u7684\u7279\u5f81\uff0c\u5de6\u8fb9\u662f\u51e0\u4e2a\u6574\u5f0f\u7684\u4e58\u79ef\u7684\u5f62\u5f0f\uff09
2\u3001C\uff08\u70b9\u62e8\uff1a \uff1d2003\u00d7\uff082003\uff0d1\uff09\uff1d2003\u00d72002\uff09
3\u3001D\uff08\u70b9\u62e8\uff1a \uff0c\u5c06m\uff0dn\uff1d3\uff0cmn\uff1d1\uff09
4\u3001D\uff08\u70b9\u62e8\uff1a \uff1d \uff1d \uff09
5\u3001A\uff08\u70b9\u62e8\uff1a\u4ee44x\uff0d3\uff1d0\uff0c\u89e3\u5f97x\uff1d0.75\uff0c\u628ax\uff1d0.75\u4ee3\u5165 \uff1d0\u4e2d\uff0c\u6c42\u5f97a\uff1d\uff0d6\uff09
6\u3001
7\u3001a\uff0db
8\u300110000
9\u3001 \u6216\u00b1
10\u300112 \uff0d5 \uff0d3
11\u3001\uff081\uff09 \uff1b\uff082\uff09 \uff1b\uff083\uff09
12\u3001
13\u300114
\u7efc\u5408\u521b\u65b0
14\u3001\u8bc1\u660e\uff1a\u2235 \uff1d \uff1d13\uff082n\uff0b13\uff09
\u2234 \u80fd\u88ab13\u6574\u9664
15\u3001\u2235 \uff1d \uff0c\u2234m\uff1d1\uff0cn\uff1d\uff0d12,
\u2234 \uff1d\uff0d12\u00d7\uff08\uff0d11\uff09\uff1d132
\u4e2d\u8003\u94fe\u63a5
16\uff0eC
17\uff0e B
18\uff0e
19\uff0e\u7b54\u6848\u4e0d\u552f\u4e00\uff0c\u5982
20\uff0e
(1)-6ax3y+8x2y2-2x2y
(2)3a2(x-y)3-4b2(y-x)2
(3)(x+y)(m-a)-3y(a-m)2+(a-m)3
(4)8x(a-1)-4(1-a)
(5)m(1-a)+mn(1-a)+1-a
(1)16x4-64y4
(2)16x6-1/4
(3)(a6+b4)2-4a6b4
(5)-2m8+512
(6)(x+y)3-64 \u6216m3-64n3
(1)-6ax^3y+8x^2y^2-2x^2y
=2x^2y(-3ax+4y-1)
(2)3a^2(x-y)^3-4b^2(y-x)^2
=(x-y)^2(3a^2-4b^2)
=(x-y)^2(3^0.5a+2b)(3^0.5a-2b)
(3)(x+y)(m-a)-3y(a-m)^2+(a-m)^3
=(a-m)[(a-m)^2-3y(a-m)-(x-y)]
\u6b64\u9898\u662f\u4e0d\u662f\u6709\u9519,\u6309\u7167\u9053\u7406\u540e\u9762\u8fd9\u4e00\u9879\u8fd8\u53ef\u4ee5\u518d\u5206\u89e3\u7684,\u662f\u5173\u4e8e(a-m)\u7684\u5206\u89e3\u5f0f
(4)8x(a-1)-4(1-a)
=4(a-1)(2x+1)
(5)m(1-a)+mn(1-a)+1-a
=(1-a)(m+mn+1)
\u6b64\u9898\u662f\u4e0d\u662f\u6709\u9519,\u6309\u7167\u9053\u7406\u540e\u9762\u8fd9\u4e00\u9879\u8fd8\u53ef\u4ee5\u518d\u5206\u89e3\u7684
\u4f8b\u5982:m+n+mn+1=(m+1)(n+1)
(1)16x4-64y4
=16(x^4-4y^4)
=16(x^2+2y^2)(x-2^0.5y)(x+2^0.5y)
(2)16x6-1/4
=1/4(64x^6-1)
=1/4(8x^3-1)(8x^3+1)
=1/4(2x-1)(4x^2+2x+1)(2x+1)(4x^2-2x+1)
(3)(a6+b4)2-4a6b4
=a^12+2a^6b^4+b^8-4a^6b^4
=a^12-2a^6b^4+b^8
=(a^6-b^4)^2
=(a^3+b^2)^2(a^3-b^2)^2
(5)-2m8+512
=-2(m^8-256)
=-2(m^4-16)(m^4+16)
=-2(m^2-4)(m^2+4)(m^4+16)
=-2(m-2)(m+2)(m^2+4)(m^4+16)
(6) (x+y)3-64
=(x+y-4)(x^2+2xy+y^2+4x+4y+16)
\u6216m3-64n3
=(m-4n)(m^2+4mn+16n^2)
1- 14 x2
4x \u20132 x2 \u2013 2
( x- y )3 \u2013(y- x)
x2 \u2013y2 \u2013 x + y
x2 \u2013y2 \uff0d1 ( x + y) (x \u2013 y )
x2 + 1 x2 \uff0d2\uff0d\uff08 x \uff0d1x )2
a3\uff0da2\uff0d2a
4m2\uff0d9n2\uff0d4m+1
3a2+bc\uff0d3ac-ab
9\uff0dx2+2xy\uff0dy2
2x2\uff0d3x\uff0d1
\uff0d2x2+5xy+2y2
10a(x\uff0dy)2\uff0d5b(y\uff0dx)
an+1\uff0d4an\uff0b4an-1
x3(2x\uff0dy)\uff0d2x\uff0by
x(6x\uff0d1)\uff0d1
2ax\uff0d10ay\uff0b5by\uff0b6x
1\uff0da2\uff0dab\uff0d14 b2
a4\uff0b4
(x2\uff0bx)(x2\uff0bx\uff0d3)\uff0b2
x5y\uff0d9xy5
\uff0d4x2\uff0b3xy\uff0b2y2
4a\uff0da5
2x2\uff0d4x\uff0b1
4y2\uff0b4y\uff0d5
3X2\uff0d7X+2
8xy(x\uff0dy)\uff0d2(y\uff0dx)3
x6\uff0dy6
x3\uff0b2xy\uff0dx\uff0dxy2
(x\uff0by)(x\uff0by\uff0d1)\uff0d12
4ab\uff0d\uff081\uff0da2\uff09\uff081\uff0db2\uff09
\uff0d3m2\uff0d2m\uff0b4
a2\uff0da\uff0d6
2(y\uff0dz)\uff0b81(z\uff0dy)
9m2\uff0d6m\uff0b2n\uff0dn2
ab(c2\uff0bd2)\uff0bcd(a2\uff0bb2)
a4\uff0d3a2\uff0d4
x4\uff0b4y4
a2\uff0b2ab\uff0bb2\uff0d2a\uff0d2b\uff0b1
x2\uff0d2x\uff0d4
4x2\uff0b8x\uff0d1
2x2\uff0b4xy\uff0by2
- m2 \u2013 n2 + 2mn + 1
(a + b)3d \u2013 4(a + b)2cd+4(a + b)c2d
(x + a)2 \u2013 (x \u2013 a)2
\u2013x5y \u2013 xy +2x3y
x6 \u2013 x4 \u2013 x2 + 1
(x +3) (x +2) +x2 \u2013 9
(x \u2013y)3 +9(x \u2013 y) \u20136(x \u2013 y)2
(a2 + b2 \u20131 )2 \u2013 4a2b2
(ax + by)2 + (bx \u2013 ay)2
x2 + 2ax \u2013 3a2
3a3b2c\uff0d6a2b2c2\uff0b9ab2c3
xy\uff0b6\uff0d2x\uff0d3y
x2(x\uff0dy)\uff0by2(y\uff0dx)
2x2\uff0d(a\uff0d2b)x\uff0dab
a4\uff0d9a2b2
ab(x2\uff0dy2)\uff0bxy(a2\uff0db2)
(x\uff0by)(a\uff0db\uff0dc)\uff0b(x\uff0dy)(b\uff0bc\uff0da)
a2\uff0da\uff0db2\uff0db
(3a\uff0db)2\uff0d4(3a\uff0db)(a\uff0b3b)\uff0b4(a\uff0b3b)2
(a\uff0b3)2\uff0d6(a\uff0b3)
(x\uff0b1)2(x\uff0b2)\uff0d(x\uff0b1)(x\uff0b2)2
35.\u56e0\u5f0f\u5206\u89e3x2\uff0d25\uff1d \u3002
36.\u56e0\u5f0f\u5206\u89e3x2\uff0d20x\uff0b100\uff1d \u3002
37.\u56e0\u5f0f\u5206\u89e3x2\uff0b4x\uff0b3\uff1d \u3002
38.\u56e0\u5f0f\u5206\u89e34x2\uff0d12x\uff0b5\uff1d \u3002
39.\u56e0\u5f0f\u5206\u89e3\u4e0b\u5217\u5404\u5f0f\uff1a
(1)3ax2\uff0d6ax\uff1d \u3002
(2)x(x\uff0b2)\uff0dx\uff1d \u3002
(3)x2\uff0d4x\uff0dax\uff0b4a\uff1d \u3002
(4)25x2\uff0d49\uff1d \u3002
(5)36x2\uff0d60x\uff0b25\uff1d \u3002
(6)4x2\uff0b12x\uff0b9\uff1d \u3002
(7)x2\uff0d9x\uff0b18\uff1d \u3002
(8)2x2\uff0d5x\uff0d3\uff1d \u3002
(9)12x2\uff0d50x\uff0b8\uff1d \u3002
40.\u56e0\u5f0f\u5206\u89e3(x\uff0b2)(x\uff0d3)\uff0b(x\uff0b2)(x\uff0b4)\uff1d \u3002
41.\u56e0\u5f0f\u5206\u89e32ax2\uff0d3x\uff0b2ax\uff0d3\uff1d \u3002
42.\u56e0\u5f0f\u5206\u89e39x2\uff0d66x\uff0b121\uff1d \u3002
43.\u56e0\u5f0f\u5206\u89e38\uff0d2x2\uff1d \u3002
44.\u56e0\u5f0f\u5206\u89e3x2\uff0dx\uff0b14 \uff1d \u3002
45.\u56e0\u5f0f\u5206\u89e39x2\uff0d30x\uff0b25\uff1d \u3002
46.\u56e0\u5f0f\u5206\u89e3\uff0d20x2\uff0b9x\uff0b20\uff1d \u3002
47.\u56e0\u5f0f\u5206\u89e312x2\uff0d29x\uff0b15\uff1d \u3002
48.\u56e0\u5f0f\u5206\u89e336x2\uff0b39x\uff0b9\uff1d \u3002
49.\u56e0\u5f0f\u5206\u89e321x2\uff0d31x\uff0d22\uff1d \u3002
50.\u56e0\u5f0f\u5206\u89e39x4\uff0d35x2\uff0d4\uff1d \u3002
51.\u56e0\u5f0f\u5206\u89e3(2x\uff0b1)(x\uff0b1)\uff0b(2x\uff0b1)(x\uff0d3)\uff1d \u3002
52.\u56e0\u5f0f\u5206\u89e32ax2\uff0d3x\uff0b2ax\uff0d3\uff1d \u3002
53.\u56e0\u5f0f\u5206\u89e3x(y\uff0b2)\uff0dx\uff0dy\uff0d1\uff1d \u3002
54.\u56e0\u5f0f\u5206\u89e3(x2\uff0d3x)\uff0b(x\uff0d3)2\uff1d \u3002
55.\u56e0\u5f0f\u5206\u89e39x2\uff0d66x\uff0b121\uff1d \u3002
56.\u56e0\u5f0f\u5206\u89e38\uff0d2x2\uff1d \u3002
57.\u56e0\u5f0f\u5206\u89e3x4\uff0d1\uff1d \u3002
58.\u56e0\u5f0f\u5206\u89e3x2\uff0b4x\uff0dxy\uff0d2y\uff0b4\uff1d \u3002
59.\u56e0\u5f0f\u5206\u89e34x2\uff0d12x\uff0b5\uff1d \u3002
60.\u56e0\u5f0f\u5206\u89e321x2\uff0d31x\uff0d22\uff1d \u3002
61.\u56e0\u5f0f\u5206\u89e34x2\uff0b4xy\uff0by2\uff0d4x\uff0d2y\uff0d3\uff1d \u3002
62.\u56e0\u5f0f\u5206\u89e39x5\uff0d35x3\uff0d4x\uff1d \u3002
63.\u56e0\u5f0f\u5206\u89e3\u4e0b\u5217\u5404\u5f0f\uff1a
(1)3x2\uff0d6x\uff1d \u3002
(2)49x2\uff0d25\uff1d \u3002
(3)6x2\uff0d13x\uff0b5\uff1d \u3002
(4)x2\uff0b2\uff0d3x\uff1d \u3002
(5)12x2\uff0d23x\uff0d24\uff1d \u3002
(6)(x\uff0b6)(x\uff0d6)\uff0d(x\uff0d6)\uff1d \u3002
(7)3(x\uff0b2)(x\uff0d5)\uff0d(x\uff0b2)(x\uff0d3)\uff1d \u3002
(8)9x2\uff0b42x\uff0b49\uff1d \u3002
(1)(x\uff0b2)\uff0d2(x\uff0b2)2\uff1d \u3002
(2)36x2\uff0b39x\uff0b9\uff1d \u3002
(3)2x2\uff0bax\uff0d6x\uff0d3a\uff1d \u3002
(4)22x2\uff0d31x\uff0d21\uff1d \u3002
70.\u56e0\u5f0f\u5206\u89e33ax2\uff0d6ax\uff1d \u3002
71.\u56e0\u5f0f\u5206\u89e3(x\uff0b1)x\uff0d5x\uff1d \u3002
72.\u56e0\u5f0f\u5206\u89e3(2x\uff0b1)(x\uff0d3)\uff0d(2x\uff0b1)(x\uff0d5)\uff1d
73.\u56e0\u5f0f\u5206\u89e3xy\uff0b2x\uff0d5y\uff0d10\uff1d
74.\u56e0\u5f0f\u5206\u89e3x2y2\uff0dx2\uff0dy2\uff0d6xy\uff0b4\uff1d
x3\uff0b2x2\uff0b2x\uff0b1
a2b2\uff0da2\uff0db2\uff0b1
(1)3ax2\uff0d2x\uff0b3ax\uff0d2
(x2\uff0d3x)\uff0b(x\uff0d3)2\uff0b2x\uff0d6
1)(2x\uff0b3)(x\uff0d2)\uff0b(x\uff0b1)(2x\uff0b3)
9x2\uff0d66x\uff0b121
17.\u56e0\u5f0f\u5206\u89e3
(1)8x2\uff0d18 (2)x2\uff0d(a\uff0db)x\uff0dab
18.\u56e0\u5f0f\u5206\u89e3\u4e0b\u5217\u5404\u5f0f
(1)9x4\uff0b35x2\uff0d4 (2)x2\uff0dy2\uff0d2yz\uff0dz2
(3)a(b2\uff0dc2)\uff0dc(a2\uff0db2)
19.\u56e0\u5f0f\u5206\u89e3(2x\uff0b1)(x\uff0b1)\uff0b(2x\uff0b1)(x\uff0d3)
20.\u56e0\u5f0f\u5206\u89e339x2\uff0d38x\uff0b8
21.\u5229\u7528\u56e0\u5f0f\u5206\u89e3\u6c42(6512 )2\uff0d(3412 )2\u4e4b\u503c
22.\u56e0\u5f0f\u5206\u89e3a(b2\uff0dc2)\uff0dc(a2\uff0db2)
24.\u56e0\u5f0f\u5206\u89e37(x\uff0d1)2\uff0b4(x\uff0d1)(y\uff0b2)\uff0d20(y+2)2
25.\u56e0\u5f0f\u5206\u89e3xy2\uff0d2xy\uff0d3x\uff0dy2\uff0d2y\uff0d1
26.\u56e0\u5f0f\u5206\u89e34x2\uff0d6ax\uff0b18a2
27.\u56e0\u5f0f\u5206\u89e320a3bc\uff0d9a2b2c\uff0d20ab3c
28.\u56e0\u5f0f\u5206\u89e32ax2\uff0d5x\uff0b2ax\uff0d5
29.\u56e0\u5f0f\u5206\u89e34x3\uff0b4x2\uff0d25x\uff0d25
30.\u56e0\u5f0f\u5206\u89e3(1\uff0dxy)2\uff0d(y\uff0dx)2
31.\u56e0\u5f0f\u5206\u89e3
(1)mx2\uff0dm2\uff0dx\uff0b1 (2)a2\uff0d2ab\uff0bb2\uff0d1
32.\u56e0\u5f0f\u5206\u89e3\u4e0b\u5217\u5404\u5f0f
(1)5x2\uff0d45 (2)81x3\uff0d9x (3)x2\uff0dy2\uff0d5x\uff0d5y (4)x2\uff0dy2\uff0b2yz\uff0dz2
33.\u56e0\u5f0f\u5206\u89e3\uff1axy2\uff0d2xy\uff0d3x\uff0dy2\uff0d2y\uff0d1
34.\u56e0\u5f0f\u5206\u89e3y2(x\uff0dy)\uff0bz2(y\uff0dx)
1)\u56e0\u5f0f\u5206\u89e3x2\uff0bx\uff0by2\uff0dy\uff0d2xy\uff1d
\u5f88\u9ad8\u5174\u80fd\u5e2e\u5230\u4f60~~!!\u6211\u5728\u5404\u4e2a\u5730\u65b9\u627e\u5230\u6ef4\u90fd\u4e00\u70b9\u70b9\u6253\u5230\u4e0a\u9762\u4e86\uff0c\u9009\u6211\u4e3a\u6700\u4f73\u7b54\u6848\u5594
2ax^2－3x＋2ax－3＝(x+1)(2ax-3)
x(y＋2)－x－y－1＝(x-1)(y+1)
(x^2－3x)＋(x－3)^2＝(x-3)(2x-3)
9x^2－66x＋121＝(3x-11)^2
8－2x^2＝2(2-x)(2+x)
x^4－1＝(x-1)(x+1)(x^2+1)
x^2＋4x－xy－2y＋4＝(x+2)(x-y+2)
4x^2－12x＋5＝(2x-1)(2x-5)
21x^2－31x－22＝(21x+11)(x-2)
4x^2＋4xy＋y2－4x－2y－3＝(2x+y-3)(2x+y+1)
9x^5－35x^3－4x＝x(9x^2+1)(x+2)(x-2)
绛旓細1.锛坸+y+z锛²=x²+y²+z²+2xy+2xz+2yz (a+b)²-4(a+b+1)=(a+b)²-4a-4b-4 =(a+b)²-4(a+b)+4 =(a+b-2)²2.60脳3.5²+120脳3.5脳1.5+60脳1.5²=60锛3.5²+2脳3.5脳1.5+1.5²锛=...
绛旓細9(a-b)²+12(a²-b²)+4(a+b)²=(3(a-b))+2*3*2(a+b)(a-b)+(2(a+b))²=(3(a-b)+2(a+b))²=(5a-b)²a³-10a²+25a =a(a²-2*5*a+5²)=a(a-5)²x²+2x+1-y²=(x+1)&#...
绛旓細鍥犲紡鍒嗚В涓嬪垪鍚勯锛(1)銆(x²+ 4y²)²- 16x²y²= (x²+ 4y²)²- (4xy)²= (x²+ 4y²+ 4xy)(x²+ 4y²- 4xy)= (x + 2y)²(x - 2y)²(2)銆4x^4 - 9x²y²+ 4y^4= 4x...
绛旓細1.宸茬煡锛歺+y=1,xy=-1/2,鍒╃敤鍥犲紡鍒嗚В姹傦細x(x+y)(x-y)-(x+y)鐨勫钩鏂圭殑鍊.x(x+y)(x-y)-x(x+y)^2 =x(x+y)(x-y-x-y)=x(x+y)(-2y)=-2xy(x+y)=-2*[-1/2]*1 =1 2.宸茬煡锛歛+b+c=11 姹2a^2+2b^2+2c^2+4ab+4ac+4bc鐨勫 2a^2+2b^2+2c^2+4ab+...
绛旓細4.x(x-y)^2-y(y-x)^2 =x(x^2-2xy+y^2)-y(y^2-2xy+x^2)=x^3-2x^2y+xy^2+xy^2-y^3+2xy^2-x^2y =x^3-y^3+3xy^2-3x^2y =(x-y)(x^2+xy+y^2)+3xy(y-x)=(x-y)(x^2-2xy+y^2)=(x-y)^3 5.m(a^2+b^2)+n(a^2+b^2)=(m+n)(a^2+b^2...
绛旓細1.a^4-4a+3 2.(a+x)^m+1*(b+x)^n-1-(a+x)^m*(b+x)^n 3.x^2+(a+1/a)xy+y^2 4.9a^2-4b^2+4bc-c^2 5.(c-a)^2-4(b-c)(a-b)绛旀1.鍘熷紡=a^4-a-3a+3=(a-1)(a^3+a^2+a-3)2.[1-(a+x)^m][(b+x)^n-1]3.(ax+y)(1/ax+y)4.9a^2-...
绛旓細12銆5x^3脳8x^2 =40x^5 13銆-3x脳(2x^2-x+4)=-6x^3+3x^2-12x 14銆11x^12脳(-12x^11)=-132 x^23 15銆(x+5)(x+6)=x^2+11x+30 16銆(2x+1)(2x+3)=4x^2+6x+2x+4=4x^2+8x+4 17銆3x^3y脳(2x^2y-3xy)=6x^5y^2-9x4y^2 18銆2x脳(3x^2-xy+y^2)=6x^3...
绛旓細姝ら鏄笉鏄湁閿,鎸夌収閬撶悊鍚庨潰杩欎竴椤硅繕鍙互鍐鍒嗚В鐨,鏄叧浜(a-m)鐨勫垎瑙ｅ紡 (4)8x(a-1)-4(1-a)=4(a-1)(2x+1)(5)m(1-a)+mn(1-a)+1-a =(1-a)(m+mn+1)姝ら鏄笉鏄湁閿,鎸夌収閬撶悊鍚庨潰杩欎竴椤硅繕鍙互鍐嶅垎瑙ｇ殑 渚嬪:m+n+mn+1=(m+1)(n+1)(1)16x4-64y4 =16(x^4-4y^...
绛旓細鈶 x²+7x+10=(x+2)(x+5)x鈫 2 x鈫 5 鈶 x²-2x-8=(x+2)(x-4)x鈫 2 x鈫 -4 鈶 y²-7y+12=(y-3)(y-4)y鈫 -3 y鈫 -4 鈶 x²+7x-18=(x-2)(x+9)x鈫 -2 x鈫 9 鈶 2[锛6x²+x锛²-1]锛6x²+x锛+5 鈶 7x...
绛旓細25.濡傚浘,鍦ㄤ竴鍧楄竟闀夸负a鍘樼背鐨勬鏂瑰舰绾告澘鍥涜,鍚勫壀鍘讳竴涓竟闀夸负 b(b< )鍘樼背鐨勬鏂瑰舰,鍒╃敤鍥犲紡鍒嗚В璁＄畻褰揳=13.2,b=3.4鏃,鍓╀綑閮ㄥ垎鐨勯潰绉 26.灏嗕笅鍒楀悇寮鍒嗚В鍥犲紡 (1) (2) ; (3) (4) (5) (6) (7) (8) (9) (10)(x2+y2)2-4x2y2 (12).x6n+2+2x3n+2+x2 (13).9(a+1)2(a-...
