👤

Rezolvati in R ecuatia:(3x+2)la puterea 2 = 4

Răspuns :

pentru x ∈ R
(3x+2)²=4⇒(3x+2)²=2²⇒√(3x+2)²=√2²⇒3x+2=2⇒3x=0⇒x=0
Deci x=0
(3x+2)^2=4 
3x+2=2 
3x=2-2 
3x=0
 x=0/3
 deci x=0