3x(x+2)=6x+12

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Solution for 3x(x+2)=6x+12 equation: 


Simplifying
3x(x + 2) = 6x + 12

Reorder the terms:
3x(2 + x) = 6x + 12
(2 * 3x + x * 3x) = 6x + 12
(6x + 3x2) = 6x + 12

Reorder the terms:
6x + 3x2 = 12 + 6x

Add '-6x' to each side of the equation.
6x + -6x + 3x2 = 12 + 6x + -6x

Combine like terms: 6x + -6x = 0
0 + 3x2 = 12 + 6x + -6x
3x2 = 12 + 6x + -6x

Combine like terms: 6x + -6x = 0
3x2 = 12 + 0
3x2 = 12

Solving
3x2 = 12

Solving for variable 'x'.

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

Divide each side by '3'.
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

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