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数学
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【计算(过程)】-x^2*(-x)^3+3x^3*(-x^2)-4(-x)*(-x)^4
人气:173 ℃ 时间:2020-04-12 11:04:48
解答
解
-x²(-x)³+3x³(-x²)-4(-x)(-x)^4
=x^5-3x^5+4x^5
=(1-3+4)x^5
=2x^5
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