(-x)^2乘以(-x)^3+2x(-x)^4把过程写详细
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(-x)^2乘以(-x)^3+2x(-x)^4把过程写详细
(-x)^2乘以(-x)^3+2x(-x)^4把过程写详细
(-x)^2乘以(-x)^3+2x(-x)^4把过程写详细
解原式=(-x)^2乘以(-x)^3+2x(-x)^4
=(-x)^2×(-x)^3+2x(-x)^4
=(x)^2×(-x)^3+2x(x)^4
=-(x)^2×(x)^3+2x(x)^4
=-(x)^(2+3)+2(x)^(4+1)
=-(x)^5+2(x)^5
=(x)^5(-1+2)
=(x)^5
(-x)^2乘以(-x)^3+2x(-x)^4
=(-x)^5+2x*x^4
=-x^5+2x^5
=x^5
希望采纳!
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