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数学
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计算:①(-2xy3x2)的4次方 ②(-a²·b的m次方)·b²
③(x²y³)的四次方+(-2x的四次方y)²·y的10次方
人气:376 ℃ 时间:2020-04-06 21:11:58
解答
1、
(-2xy^3x^2)^4
=16x^12 y^12
2、
(-a²b^m)*b²
= -a²b^(m+2)
3、
(x²y³)^4 +(-2x^4y)² *y^10
=x^8 y^12+ 4x^8 y^12
=5x^8 y^12
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