因式分解:2x²+4x+1,

问题描述:

因式分解:2x²+4x+1,

2x²+4x+1
= 2x²+4x+2-1
= 2(x²+2x+1)-1
= 2(x+1)²-1
= 2(x+1+√2/2)(x+1-√2/2)