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Simplifying
x2 + 6x = 2(3x + 2)
Reorder the terms:
6x + x2 = 2(3x + 2)
Reorder the terms:
6x + x2 = 2(2 + 3x)
6x + x2 = (2 * 2 + 3x * 2)
6x + x2 = (4 + 6x)
Add '-6x' to each side of the equation.
6x + -6x + x2 = 4 + 6x + -6x
Combine like terms: 6x + -6x = 0
0 + x2 = 4 + 6x + -6x
x2 = 4 + 6x + -6x
Combine like terms: 6x + -6x = 0
x2 = 4 + 0
x2 = 4
Solving
x2 = 4
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Simplifying
x2 = 4
Take the square root of each side:
x = {-2, 2}
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