8x^2-162=

Solution for 8x^2-162= equation:

Simplifying
8x2 + -162 = 0

Reorder the terms:
-162 + 8x2 = 0

Solving
-162 + 8x2 = 0

Solving for variable 'x'.

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

Add '162' to each side of the equation.
-162 + 162 + 8x2 = 0 + 162

Combine like terms: -162 + 162 = 0
0 + 8x2 = 0 + 162
8x2 = 0 + 162

Combine like terms: 0 + 162 = 162
8x2 = 162

Divide each side by '8'.
x2 = 20.25

Simplifying
x2 = 20.25

Take the square root of each side:
x = {-4.5, 4.5}