r^2-22=0

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Solution for r^2-22=0 equation: 


Simplifying
r2 + -22 = 0

Reorder the terms:
-22 + r2 = 0

Solving
-22 + r2 = 0

Solving for variable 'r'.

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

Add '22' to each side of the equation.
-22 + 22 + r2 = 0 + 22

Combine like terms: -22 + 22 = 0
0 + r2 = 0 + 22
r2 = 0 + 22

Combine like terms: 0 + 22 = 22
r2 = 22

Simplifying
r2 = 22

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

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