4r^2-7=125

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Solution for 4r^2-7=125 equation:


Simplifying
4r2 + -7 = 125

Reorder the terms:
-7 + 4r2 = 125

Solving
-7 + 4r2 = 125

Solving for variable 'r'.

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

Add '7' to each side of the equation.
-7 + 7 + 4r2 = 125 + 7

Combine like terms: -7 + 7 = 0
0 + 4r2 = 125 + 7
4r2 = 125 + 7

Combine like terms: 125 + 7 = 132
4r2 = 132

Divide each side by '4'.
r2 = 33

Simplifying
r2 = 33

Take the square root of each side:
r = {-5.744562647, 5.744562647}

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