(-x)(3x)=

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Solution for (-x)(3x)= equation: 


Simplifying
(-1x)(3x) = 0

Remove parenthesis around (-1x)
-1x(3x) = 0

Remove parenthesis around (3x)
-1x * 3x = 0

Reorder the terms for easier multiplication:
-1 * 3x * x = 0

Multiply -1 * 3
-3x * x = 0

Multiply x * x
-3x2 = 0

Solving
-3x2 = 0

Solving for variable 'x'.

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

Divide each side by '-3'.
x2 = 0

Simplifying
x2 = 0

Take the square root of each side:
x = {0}

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