r^2-23=

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Solution for r^2-23= equation: 


Simplifying
r2 + -23 = 0

Reorder the terms:
-23 + r2 = 0

Solving
-23 + r2 = 0

Solving for variable 'r'.

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

Add '23' to each side of the equation.
-23 + 23 + r2 = 0 + 23

Combine like terms: -23 + 23 = 0
0 + r2 = 0 + 23
r2 = 0 + 23

Combine like terms: 0 + 23 = 23
r2 = 23

Simplifying
r2 = 23

Take the square root of each side:
r = {-4.795831523, 4.795831523}

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