(x+8)(x-8)=12

Solution for (x+8)(x-8)=12 equation:

Simplifying
(x + 8)(x + -8) = 12

Reorder the terms:
(8 + x)(x + -8) = 12

Reorder the terms:
(8 + x)(-8 + x) = 12

Multiply (8 + x) * (-8 + x)
(8(-8 + x) + x(-8 + x)) = 12
((-8 * 8 + x * 8) + x(-8 + x)) = 12
((-64 + 8x) + x(-8 + x)) = 12
(-64 + 8x + (-8 * x + x * x)) = 12
(-64 + 8x + (-8x + x2)) = 12

Combine like terms: 8x + -8x = 0
(-64 + 0 + x2) = 12
(-64 + x2) = 12

Solving
-64 + x2 = 12

Solving for variable 'x'.

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

Add '64' to each side of the equation.
-64 + 64 + x2 = 12 + 64

Combine like terms: -64 + 64 = 0
0 + x2 = 12 + 64
x2 = 12 + 64

Combine like terms: 12 + 64 = 76
x2 = 76

Simplifying
x2 = 76

Take the square root of each side:
x = {-8.717797887, 8.717797887}