7238=12.56r^2

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Solution for 7238=12.56r^2 equation: 


Simplifying
7238 = 12.56r2

Solving
7238 = 12.56r2

Solving for variable 'r'.

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

Add '-12.56r2' to each side of the equation.
7238 + -12.56r2 = 12.56r2 + -12.56r2

Combine like terms: 12.56r2 + -12.56r2 = 0.00
7238 + -12.56r2 = 0.00

Add '-7238' to each side of the equation.
7238 + -7238 + -12.56r2 = 0.00 + -7238

Combine like terms: 7238 + -7238 = 0
0 + -12.56r2 = 0.00 + -7238
-12.56r2 = 0.00 + -7238

Combine like terms: 0.00 + -7238 = -7238
-12.56r2 = -7238

Divide each side by '-12.56'.
r2 = 576.2738854

Simplifying
r2 = 576.2738854

Take the square root of each side:
r = {-24.005705268, 24.005705268}

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