帮下数学题啊
计算:(-2x²y)×(3/2xy)=,3/4x³×(-2/3x²yz)=(0.3x³y的4次方)×(-0.2x的4次方y)=,(...
计算:(-2x²y)×(3/2xy)= ,3/4x³×(-2/3x²yz)=
(0.3x³y的4次方)×(-0.2x的4次方y)= ,(3×10的5次方)×(9×10的7次方)=
(-2/3x平方yz³×(-3/4z)×(1/3xy²z³)=,(-3x)²×(xy²)²=
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http://hi.baidu.com/wuyujie990/album/item/068e2e4574215472869473e1.html#IMG=3162ca09029c2ce22fddd4e2 展开
(0.3x³y的4次方)×(-0.2x的4次方y)= ,(3×10的5次方)×(9×10的7次方)=
(-2/3x平方yz³×(-3/4z)×(1/3xy²z³)=,(-3x)²×(xy²)²=
图片网址:http://hi.baidu.com/wuyujie990/album/item/068e2e4574215472869473e1.html#
http://hi.baidu.com/wuyujie990/album/item/068e2e4574215472869473e1.html#IMG=3162ca09029c2ce22fddd4e2 展开
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