Răspuns:
(4-3)=2x(8x - 5) -5 =
16x - 10x -5 = 1. | +5
6x = 6
x = 1
Explicație pas cu pas:
2x(8x-5)-5=(4-3)
16x^2 -10x-5=1
16x^2- 10x-5-1=0
16x^2-10x-6=0 | :2
8x^2 -5x-3=0
8x^2+3x-8x-3=0
x(8x+3)-(8x+3)=0
(8x+3)(x-1)=0
8x+3=0
8x=-3
x=-3:8
x1 = -3/8
x-1=0
x2 =1
