3(x+2)=x^2-2x

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Solution for 3(x+2)=x^2-2x equation:


Simplifying
3(x + 2) = x2 + -2x

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

Reorder the terms:
6 + 3x = -2x + x2

Solving
6 + 3x = -2x + x2

Solving for variable 'x'.

Combine like terms: 3x + 2x = 5x
6 + 5x + -1x2 = -2x + x2 + 2x + -1x2

Reorder the terms:
6 + 5x + -1x2 = -2x + 2x + x2 + -1x2

Combine like terms: -2x + 2x = 0
6 + 5x + -1x2 = 0 + x2 + -1x2
6 + 5x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
6 + 5x + -1x2 = 0

Factor a trinomial.
(6 + -1x)(1 + x) = 0

Subproblem 1

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Subproblem 2

Set the factor '(1 + x)' equal to zero and attempt to solve: Simplifying 1 + x = 0 Solving 1 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + x = 0 + -1 x = 0 + -1 Combine like terms: 0 + -1 = -1 x = -1 Simplifying x = -1

Solution

x = {6, -1}

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