-(x-1)的平方+1因式分解
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-(x-1)的平方+1因式分解-(x-1)的平方+1因式分解-(x-1)的平方+1因式分解-(x-1)²+1=1-(x-1)²=[1+(x-1)][1-(x-1)]=x(-x+2)
-(x-1)的平方+1因式分解
-(x-1)的平方+1因式分解
-(x-1)的平方+1因式分解
-(x-1)²+1
=1-(x-1)²
=[1+(x-1)][1-(x-1)]
=x(-x+2)
=-x(x-2)