k^2-2=20

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Solution for k^2-2=20 equation: 


Simplifying
k2 + -2 = 20

Reorder the terms:
-2 + k2 = 20

Solving
-2 + k2 = 20

Solving for variable 'k'.

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

Add '2' to each side of the equation.
-2 + 2 + k2 = 20 + 2

Combine like terms: -2 + 2 = 0
0 + k2 = 20 + 2
k2 = 20 + 2

Combine like terms: 20 + 2 = 22
k2 = 22

Simplifying
k2 = 22

Take the square root of each side:
k = {-4.69041576, 4.69041576}

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