5x²-2ⅹ=(x-1)²怎么用因式分解法？

Question

如题所述

Answer 1

5x² - 2x = (x - 1)²
5x² - 2x = x² -2x +1
4x² = 1
x = ±0.5

Answer 2

5x^2-2x=(x-1)^2
5x^2-2x=x^2-2x+1
4x^2-1=0
(2x+1)(2x-1)=0
x1=-1/2，x2=1/2。

Answer 3

5x（ 2 -x）=x- 2 ，∴5x（ 2 -x）+（ 2 -x）=0，分解因式得：（ 2 -x）（5x+1）=0，∴ 2 -x=0，5x+1=0，解方程得：x 1 = 2 ，x 2 =- 1 ...

Answer 4

5x²-2ⅹ=(x-1)²怎么用因式分解法？
5x²-2ⅹ=(x-1)²
5x²-2ⅹ=x²-2x+1
4x²-1=0
(2x+1)*(2x-1)=0
x=1/2 or -1/2