Question

(3x+2)^2 = 4

Rezolvare pas cu pas, va rog!

Answer 1

(3x+2)^2 = 4

9x² + 12x + 4 = 4

9x²  + 12x = 4 - 4

9x² + 12x = 0

3x × (3x + 4) = 0

3x = 0  ⇒ x = 0

3x + 4 = 0  ⇒ 3x = - 4  ⇒ x = -4/3

S = { - 4/3; 0}