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Simplifying
(3x) * x = 54
Remove parenthesis around (3x)
3x * x = 54
Multiply x * x
3x2 = 54
Solving
3x2 = 54
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '3'.
x2 = 18
Simplifying
x2 = 18
Take the square root of each side:
x = {-4.242640687, 4.242640687}
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