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x的m次方乘(x的n次方)的3次方除以(x的m-1次方乘2x的n-1次方)=
人气:346 ℃ 时间:2020-05-22 07:32:38
解答
x^m*(x^n)^2/[x^(m-1)*2x^(n-1)]
=x^(m+2n)/[2x^(m+n-2)]
=(1/2)x^(m+2n-m-n+2)
=(1/2)x^(n+2)
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