因式分解3x^2+4x+1
问题描述:
因式分解3x^2+4x+1
答
(3X+1)(X+1)
答
(3x+1)(x+1)
答
原式=3x²+3x+x+1
=3x(x+1)+(x+1)
=(x+1)(3x+1)