Question

rezolvati in R ecuatia:
(2x-1)(x+6)=0

Answer 1

(2x-1)(x+6) = 0

⇒ (2x-1 = 0) ∨ (x+6 = 0)

⇔ (2x = 1) ∨ (x = -6)

⇔ (x = 1/2) ∨ (x = -6)

⇒ x ∈ {-6; 1/2}