r^2-8=41

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Solution for r^2-8=41 equation: 


Simplifying
r2 + -8 = 41

Reorder the terms:
-8 + r2 = 41

Solving
-8 + r2 = 41

Solving for variable 'r'.

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

Add '8' to each side of the equation.
-8 + 8 + r2 = 41 + 8

Combine like terms: -8 + 8 = 0
0 + r2 = 41 + 8
r2 = 41 + 8

Combine like terms: 41 + 8 = 49
r2 = 49

Simplifying
r2 = 49

Take the square root of each side:
r = {-7, 7}

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