5x^2-10x=-5,用因式分解法

问题描述:

5x^2-10x=-5,用因式分解法

5x^2-10x=-5
x²-2x+1=0
(x-1)²=0
x=1

5x^2-10x=-5
5x^2-10x+5=0
5(x-1)^2=0
x-1=0
x=1

5x^2-10x+5=0
(5x-5)(x-1)=0
x=1