3x^2+42=150

Solution for 3x^2+42=150 equation:

Simplifying
3x2 + 42 = 150

Reorder the terms:
42 + 3x2 = 150

Solving
42 + 3x2 = 150

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-42' to each side of the equation.
42 + -42 + 3x2 = 150 + -42

Combine like terms: 42 + -42 = 0
0 + 3x2 = 150 + -42
3x2 = 150 + -42

Combine like terms: 150 + -42 = 108
3x2 = 108

Divide each side by '3'.
x2 = 36

Simplifying
x2 = 36

Take the square root of each side:
x = {-6, 6}