8k^2-8=120

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Solution for 8k^2-8=120 equation: 


Simplifying
8k2 + -8 = 120

Reorder the terms:
-8 + 8k2 = 120

Solving
-8 + 8k2 = 120

Solving for variable 'k'.

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

Add '8' to each side of the equation.
-8 + 8 + 8k2 = 120 + 8

Combine like terms: -8 + 8 = 0
0 + 8k2 = 120 + 8
8k2 = 120 + 8

Combine like terms: 120 + 8 = 128
8k2 = 128

Divide each side by '8'.
k2 = 16

Simplifying
k2 = 16

Take the square root of each side:
k = {-4, 4}

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