4r^2-1=0

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Solution for 4r^2-1=0 equation: 


Simplifying
4r2 + -1 = 0

Reorder the terms:
-1 + 4r2 = 0

Solving
-1 + 4r2 = 0

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 + 4r2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 4r2 = 0 + 1
4r2 = 0 + 1

Combine like terms: 0 + 1 = 1
4r2 = 1

Divide each side by '4'.
r2 = 0.25

Simplifying
r2 = 0.25

Take the square root of each side:
r = {-0.5, 0.5}

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