8x^2+12=172

Solution for 8x^2+12=172 equation:

Simplifying
8x2 + 12 = 172

Reorder the terms:
12 + 8x2 = 172

Solving
12 + 8x2 = 172

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 8x2 = 172 + -12

Combine like terms: 12 + -12 = 0
0 + 8x2 = 172 + -12
8x2 = 172 + -12

Combine like terms: 172 + -12 = 160
8x2 = 160

Divide each side by '8'.
x2 = 20

Simplifying
x2 = 20

Take the square root of each side:
x = {-4.472135955, 4.472135955}