因式分解:4x-4x^2-1

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因式分解:4x-4x^2-1因式分解:4x-4x^2-1因式分解:4x-4x^2-1解4x-4x²-1=-(4x²-4x+1)=-(2x-1)²4x-4x^2-1=-(4

因式分解:4x-4x^2-1
因式分解:4x-4x^2-1

因式分解:4x-4x^2-1

4x-4x²-1
=-(4x²-4x+1)
=-(2x-1)²

4x-4x^2-1
=-(4x^2-4x+1)
=-(2x-1)^2

原式=-﹙4x²-4x+1﹚=-﹙2x-1﹚²