因式分解:1/2x^2-2

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因式分解:1/2x^2-2因式分解:1/2x^2-2因式分解:1/2x^2-21/2x^2-2=1/2(x²-4)=1/2(x+2)(x-2)1/2x²-2=1/2(x²

因式分解:1/2x^2-2
因式分解:1/2x^2-2

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

1/2x²-2
=1/2(x²-4)
=1/2(x+2)(x-2)

1/2(X^2-4)=1/2(X-2)(X+2)