(x-1)(x-3)+1因式分解

问题描述:

(x-1)(x-3)+1因式分解

原式=x²-4x+3+1
=x²-4x+4
=(x-2)²

(x-1)(x-3)+1
=x^2-3x-x+3+1
=x^2-4x+4
=(x-2)^2

原式=x^2-4x+3+1
=x^2-4x+4
=(x-2)^2