Question

(y-x)的三次×(x-y)的m次方+(x-y)的m+1次方 怎么算.

Answer 1

原式=-(x-y)^3*(x-y)^m+(x-y)^m+1

=(x-y)^(m+3)+(x-y)^(m+1)

=[(x-y)^2+1](x-y)^(m+1)

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