x(x+x)=288

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Solution for x(x+x)=288 equation: 


Simplifying
x(x + x) = 288

Combine like terms: x + x = 2x
x(2x) = 288

Remove parenthesis around (2x)
x * 2x = 288

Reorder the terms for easier multiplication:
2x * x = 288

Multiply x * x
2x2 = 288

Solving
2x2 = 288

Solving for variable 'x'.

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

Divide each side by '2'.
x2 = 144

Simplifying
x2 = 144

Take the square root of each side:
x = {-12, 12}

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