Question

-3y ao quadrado+48=0

Answer 1

-3y²+48=0(-1)
3y²-48=0
3y²=48
3y²=48
y²=48/3
y²=16
y=V16
y=4

Answer 2

Veja: -3y^2 + 48 = 0 -3y^2 = -48 (-1) 3y^2 = 48 y^2 = 48/3 y^2 = 16 y = +-√16 y = +-4 S = {4, -4}