can't get any easier ...
3x^2 = 27
divide both sides by 3
x^2 = 9
x = ± 3
try the second one using either the formula or completing the square.
Let me know your steps
Solve the quadratic equation 3x²=27
Solve the quadratic equation 2x² - 4x + 1 = 0
2 answers
3x²=27