因式分解 (x²+1)²-4x²、0.5x²-x+0.5
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因式分解 (x²+1)²-4x²、0.5x²-x+0.5
因式分解 (x²+1)²-4x²、0.5x²-x+0.5
因式分解 (x²+1)²-4x²、0.5x²-x+0.5
(x²+1)²-4x²
=(x²+1+2x)(x²+1-2x)
=(x+1)²(x-1)²
0.5x²-x+0.5
=0.5(x²-2x+1)
=0.5(x-1)²