Question

x\3 = 8\12
(x+6)(x-6)=2\3
​

Answer 1

Vamos là.

x/3 = 8/12

12x = 3*8

12x = 24

x = 24/12 = 2

(x + 6)*(x - 6) = 2/3

x^2 - 36 = 2/3

x^2 = 36 + 2/3

x^2 = 110/3

x1 = √(110/3)

x2 = -√(110/3)