2r(6*r)=648

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Solution for 2r(6*r)=648 equation: 


Simplifying
2r(6r) = 648

Remove parenthesis around (6r)
2r * 6r = 648

Reorder the terms for easier multiplication:
2 * 6r * r = 648

Multiply 2 * 6
12r * r = 648

Multiply r * r
12r2 = 648

Solving
12r2 = 648

Solving for variable 'r'.

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

Divide each side by '12'.
r2 = 54

Simplifying
r2 = 54

Take the square root of each side:
r = {-7.348469228, 7.348469228}

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