1.(x2+1)2-4x²
=(x²+1+2x)(x²+1-2x)
=(x+1)²(x-1)²
2.(x-y)2-2(x-y)-8
=(x-y+2)(x-y-4)
二、因式分解 1.(x2+1)2-4x² 2.(x-y)2-2(x-y)-8
二、因式分解 1.(x2+1)2-4x² 2.(x-y)2-2(x-y)-8
數(shù)學(xué)人氣:298 ℃時(shí)間:2019-11-01 18:18:28
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