7r^2+1=568

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Solution for 7r^2+1=568 equation: 


Simplifying
7r2 + 1 = 568

Reorder the terms:
1 + 7r2 = 568

Solving
1 + 7r2 = 568

Solving for variable 'r'.

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

Add '-1' to each side of the equation.
1 + -1 + 7r2 = 568 + -1

Combine like terms: 1 + -1 = 0
0 + 7r2 = 568 + -1
7r2 = 568 + -1

Combine like terms: 568 + -1 = 567
7r2 = 567

Divide each side by '7'.
r2 = 81

Simplifying
r2 = 81

Take the square root of each side:
r = {-9, 9}

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