x²-xy+1/4y²-1因式分解

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x²-xy+1/4y²-1因式分解x²-xy+1/4y²-1因式分解x²-xy+1/4y²-1因式分解x²-xy+1/4y

x²-xy+1/4y²-1因式分解
x²-xy+1/4y²-1因式分解

x²-xy+1/4y²-1因式分解
x²-xy+1/4y²-1
=(x-1/2y)²-1
=(x-1/2y-1)(x-1/2y+1)