2a(x²+1²)-8ax²因式分解

问题描述:

2a(x²+1²)-8ax²因式分解

2a(x²+1)²-8ax²=2a[(x²+1)²-4x²]=2a[(x²+1)+2x][(x²+1)-2x]=2a(x²+2x+1)(x²-2x+1)=2a(x+1)²(x-1)²