(2x+x)*x=144

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Solution for (2x+x)*x=144 equation: 


Simplifying
(2x + x) * x = 144

Combine like terms: 2x + x = 3x
(3x) * x = 144

Remove parenthesis around (3x)
3x * x = 144

Multiply x * x
3x2 = 144

Solving
3x2 = 144

Solving for variable 'x'.

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

Divide each side by '3'.
x2 = 48

Simplifying
x2 = 48

Take the square root of each side:
x = {-6.92820323, 6.92820323}

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