Question

2(x+3)^2 - 5 (x+3) + 2= 0

Answer 1

2x^2 + 12x + 18 - 5x - 15 + 2 = 0
2x^2 + 7x + 5 = 0  Baskara
x = -7 +- √49-40] ÷ 2×2
x' = -7 + 3]/4=-1
x'' = -7 - 3]/4= -5/2

Answer 2

Espero ter ajudado!!