Question

5x-3的平方等于x+1的平方解方程

Answer 1

(5x - 3)^2 = (x + 1)^2

5x - 3 = ± (x + 1)

5x - 3 = x + 1

4x = 4

x = 1 ；

5x - 3 = - x - 1

6x = 2

x = 2/3 .

即：

x1 = 1

x2 = 2/3