Question

Alguem sabe resolver:
3(x²-5)+4=22

Answer 1

3(x²-5)+4=22

(3x^2) - 15 + 4 = 22

3x^2 = 22 +15 - 4

3x^2 = 33

x^2 = 33/3

x^2 = 11  

x = $\sqrt{11}$