几题数学题！！！急救！！！
\u51e0\u9053\u6570\u5b66\u9898\u5566\uff0c\u6025\u6551> <1\u3001\u4e24\u4e2a\u6570\u76f8\u9664\uff0c\u5546\u662f32\uff0c\u4f59\u6570\u662f12\uff0c\u88ab\u9664\u6570\u3001\u9664\u6570\u3001\u5546\u3001\u4f59\u6570\u7684\u548c\u662f551\uff0c\u9664\u6570\u662f\uff0815\uff09
2\u3001\u4e00\u4e2a\u5206\u6570\u7684\u5206\u5b50\u4e0d\u53d8\uff0c\u5206\u6bcd\u4e58\u4ee510\uff0c\u6240\u5f97\u5206\u6570\u4e0e\u539f\u5206\u6570\u76f8\u5dee\u56db\u5341\u5206\u4e4b\u4e8c\u5341\u4e03\uff0c\u539f\u5206\u6570\u662f\uff083/4\uff09
3. \uff0810+40\uff09\u00f7\uff081-3/8-3/8)=200\uff08\u5428\uff09
200\u00d73/8+10=85\uff08\u5428\uff09
\u7b54\uff1a\u8fd0\u8d70\u4e8685\u5428\u3002
1\u3001\u7b2c50\u4e2a\u662f\uff08-35\uff09+\uff0850-1\uff09=14\uff0cS=\uff08\uff08-35\uff09+14\uff09*50/2=-525
2\u3001| x+3 |+\uff08y-2\uff09²=0\uff0c\u56e0\u4e3a| x+3 |\u5927\u4e8e\u7b49\u4e8e0\uff0c \uff08y-2\uff09²\u5927\u4e8e\u7b49\u4e8e0\uff0c \u6240\u4ee5x=-3\uff0c y=2
3\u3001\u89e3\u6cd5\u5982\u98982
4\u3001\u539f\u5f0f=4\u00d7\uff08\uff08-2\uff09\u00d73-2\uff09-2=-34
5\u3001 1-1/36\u00d7[ | -2 |³ -12+\uff08-2\uff09³ ]
=1-1/36\u00d7[ 2³ -12+\uff08-2\uff09³ ]
=1-1/36\u00d7[ 8 -12+\uff08-8\uff09 ]
=1-1/36\u00d7(-12)
=1+1/3=4/3
2、x=5,y=4
3、15
4、4
5、（-2x^2y^3)^2=4x^4y^6 (2×10^3×3×10^4)^2=4×10^6×9×10^8=3.6×10^15
6、V=3/4×3×（6×10^5)^3=4.86×10^17(立方千米）
7、原式=x^(2n+4)×y^(2n+4)=(xy)^(2n+4)=(3×1／3）^(2n+4)=1
n=9,m=14;
x=5,y=4;
15;
4;
看不懂题目
v=(3/4)X3XrXrXr=4.86X10^17;
看不懂题目
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