这个式子如何化简
x^(m+3n)/2x^(m+n-2)
人气：447 ℃ 时间：2020-05-28 14:50:39
解答
x^(m+3n)/2x^(m+n-2)
=1/2*x^[(m+3n)-(m+n-2)]
=1/2*x^(m+3n-m-n+2)
=1/2*x^(m-m+3n-n+2)
=1/2*x^(2n+2)
=x^(2n+2)/2
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