2r^2-2=0

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Solution for 2r^2-2=0 equation: 


Simplifying
2r2 + -2 = 0

Reorder the terms:
-2 + 2r2 = 0

Solving
-2 + 2r2 = 0

Solving for variable 'r'.

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

Add '2' to each side of the equation.
-2 + 2 + 2r2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 2r2 = 0 + 2
2r2 = 0 + 2

Combine like terms: 0 + 2 = 2
2r2 = 2

Divide each side by '2'.
r2 = 1

Simplifying
r2 = 1

Take the square root of each side:
r = {-1, 1}

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