因式分解 x^2-2x-2y^2+1

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因式分解x^2-2x-2y^2+1因式分解x^2-2x-2y^2+1因式分解x^2-2x-2y^2+1=x^2-2x+1-2y^2=(x-1)^2-2y^2=(x-1+√2y)(x-1-√2y)

因式分解 x^2-2x-2y^2+1
因式分解 x^2-2x-2y^2+1

因式分解 x^2-2x-2y^2+1
= x^2-2x+1-2y^2
=(x-1)^2-2y^2
=(x-1+√2y)(x-1-√2y)