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化简-2[(-x)^ 2y]^2 (-3x^m y^n)
人气:497 ℃ 时间:2020-08-04 02:35:18
解答
-2[(-x)^ 2y]^2 (-3x^m y^n)
=-2(x^2y)^2 (-3x^m y^n)
=(-2)*(-3)*x^4y^2*x^my^n
=6x^(4+m)*y^(2+n)
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