计算4(m+n)^2乘(-m-n)^3-(m+n)(-m-n)^4+5(m+n)^5
人气:296 ℃ 时间:2020-05-01 19:21:22
解答
4(m+n)^2乘(-m-n)^3-(m+n)(-m-n)^4+5(m+n)^5
=-4(m+n)^5-(m+n)^5+5(m+n)^5
=0
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