Question

(4-3)= 2x(8x-5) - 5​

Answer 1

Răspuns:

(4-3)=2x(8x - 5) -5 =

16x - 10x -5 = 1. | +5

6x = 6

x = 1

Explicație pas cu pas:

Answer 2

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