Question

Determine as raízes da equação (x+2)² = 2 (2x +3)

Answer 1

(X + 2)(X + 2) = X² + 2X + 2X + 4
2(2X + 3) = 4X + 6

X² + 4X + 4 = 4X + 6
X² + 4X - 4X + 4 - 6 = X² - 2 = 0
X² = 2
X1 = RAIZ DE 2
X2 = - RAIZ DE 2