Question

Решите уравнение (2х+3)(4х-3)-17=2х(4х+1)

Answer 1

8x^2 + 12x - 6x - 9 - 17 = 8x^2 + 2x

6x -26 = 2x

4x = 26

x = 26/4

x = 13/2

x = 6.5

Answer 2

8x*2 - 6x + 12x - 9 - 17 = 8x*2 + 2x

8x*2 - 8x*2 + 12x - 2x - 6x = - 9 - 17

4x = - 26

x = -28 : 4

x = -6