3x^2-147=

Solution for 3x^2-147= equation:

Simplifying
3x2 + -147 = 0

Reorder the terms:
-147 + 3x2 = 0

Solving
-147 + 3x2 = 0

Solving for variable 'x'.

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

Add '147' to each side of the equation.
-147 + 147 + 3x2 = 0 + 147

Combine like terms: -147 + 147 = 0
0 + 3x2 = 0 + 147
3x2 = 0 + 147

Combine like terms: 0 + 147 = 147
3x2 = 147

Divide each side by '3'.
x2 = 49

Simplifying
x2 = 49

Take the square root of each side:
x = {-7, 7}