解決y=(2x+1)^2= |Microsoft數學求解器

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解 y

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y=4x^{2}+4x+1

使用二項式定理 \left(a+b\right)^{2}=a^{2}+2ab+b^{2} 展開 \left(2x+1\right)^{2}。

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二次方程式