(x+1)(x+3)+1因式分解急
问题描述:
(x+1)(x+3)+1因式分解
急
答
(x+1)(x+3)+1
=x^2+4x+3+1
=(x+2)^2
答
=x^2+4x+3+1
=x^2+4x+4
=(x+2)^2
答
原式=(x+1)(x+3)+1
=(x^2+4x+3)+1
=x^2+4x+4
=(x+2)^2
记得采纳哟亲
答
(x+1)(x+3)+1
=x^2+3x+x+3+1
=x^2+4x+4
=(x+2)^2