求解 y=x(x-1)^2 | Microsoft Math Solver

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求解 y 的值

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y=x\left(x^{2}-2x+1\right)

使用二项式定理 \left(a-b\right)^{2}=a^{2}-2ab+b^{2} 展开 \left(x-1\right)^{2}。

y=x^{3}-2x^{2}+x

使用分配律将 x 乘以 x^{2}-2x+1。

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