x²-2x+8 因式分解
问题描述:
x²-2x+8 因式分解
答
x²-2x+8
=x²-2x+1+8-1
=﹙x-1﹚²+7
x²-2x+8 因式分解
x²-2x+8
=x²-2x+1+8-1
=﹙x-1﹚²+7