求初二因式分解计算题加答案 越多越好 求因式分解的题,越多越好,初二范围内的
\u6c4240\u9053\u521d\u4e8c\u6570\u5b66\u56e0\u5f0f\u5206\u89e3\u8ba1\u7b97\u9898\u8fd8\u6709\u7b54\u6848\uff08\u7b80\u5355\u70b9\u7684\uff09(2x\uff0b1)(x\uff0b1)\uff0b(2x\uff0b1)(x\uff0d3)\uff1d2(x-1)(2x+1)
2ax^2\uff0d3x\uff0b2ax\uff0d3\uff1d(x+1)(2ax-3)
x(y\uff0b2)\uff0dx\uff0dy\uff0d1\uff1d(x-1)(y+1)
(x^2\uff0d3x)\uff0b(x\uff0d3)^2\uff1d(x-3)(2x-3)
9x^2\uff0d66x\uff0b121\uff1d(3x-11)^2
8\uff0d2x^2\uff1d2(2-x)(2+x)
x^4\uff0d1\uff1d(x-1)(x+1)(x^2+1)
x^2\uff0b4x\uff0dxy\uff0d2y\uff0b4\uff1d(x+2)(x-y+2)
4x^2\uff0d12x\uff0b5\uff1d(2x-1)(2x-5)
21x^2\uff0d31x\uff0d22\uff1d(21x+11)(x-2)
4x^2\uff0b4xy\uff0by2\uff0d4x\uff0d2y\uff0d3\uff1d(2x+y-3)(2x+y+1)
9x^5\uff0d35x^3\uff0d4x\uff1dx(9x^2+1)(x+2)(x-2)
http://wenku.baidu.com/link?url=jPEvj_R8qewbDc0xqoztuh19ua7SX4XQVf6OzetCDEU_9i-MAsJN-AfyuDcsLqpJfbHcmyOxFOmibH1YFYmCT4Akjy1lsclgOHv7HAT7rcC \u5e0c\u671b\u80fd\u591f\u5e2e\u52a9\u5230\u4f60\uff01\uff01
1.因式分解3a^3b^2c-6a^2b^2c^2+9ab^2c^3=3ab^2 c(a^2-2ac+3c^2)2.因式分解xy+6-2x-3y=(x-3)(y-2)
3.因式分解x^2(x-y)+y^2(y-x)=(x+y)(x-y)^2
4.因式分解2x^2-(a-2b)x-ab=(2x-a)(x+b)
5.因式分解a^4-9a^2b^2=a^2(a+3b)(a-3b)
8.因式分解ab(x^2-y^2)+xy(a^2-b^2)=(ay+bx)(ax-by)
9.因式分解(x+y)(a-b-c)+(x-y)(b+c-a)=2y(a-b-c)
10.因式分解a^2-a-b^2-b=(a+b)(a-b-1)
11.因式分解(3a-b)2-4(3a-b)(a+3b)+4(a+3b)2=[3a-b-2(a+3b)]^2=(a-7b)^2
12.因式分解(a+3)2-6(a+3)=(a+3)(a-3)
(1)3x^2-6x=3x(x-2)
(2)49x^2-25=(7x+5)(7x-5)
(3)6x^2-13x+5=(2x-1)(3x-5)
(4)x^2+2-3x=(x-1)(x-2)
(5)12x^2-23x-24=(3x-8)(4x+3)
(6)(x+6)(x-6)-(x-6)=(x-6)(x+5)
(7)3(x+2)(x-5)-(x+2)(x-3)=2(x-6)(x+2)
(8)9x^2+42x+49=(3x+7)^2 。
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