x(3x)=28

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Solution for x(3x)=28 equation: 


Simplifying
x(3x) = 28

Remove parenthesis around (3x)
x * 3x = 28

Reorder the terms for easier multiplication:
3x * x = 28

Multiply x * x
3x2 = 28

Solving
3x2 = 28

Solving for variable 'x'.

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

Divide each side by '3'.
x2 = 9.333333333

Simplifying
x2 = 9.333333333

Take the square root of each side:
x = {-3.055050463, 3.055050463}

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