x^2-x-2=3x+3

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


Simplifying
x2 + -1x + -2 = 3x + 3

Reorder the terms:
-2 + -1x + x2 = 3x + 3

Reorder the terms:
-2 + -1x + x2 = 3 + 3x

Solving
-2 + -1x + x2 = 3 + 3x

Solving for variable 'x'.

Reorder the terms:
-2 + -3 + -1x + -3x + x2 = 3 + 3x + -3 + -3x

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

Combine like terms: -1x + -3x = -4x
-5 + -4x + x2 = 3 + 3x + -3 + -3x

Reorder the terms:
-5 + -4x + x2 = 3 + -3 + 3x + -3x

Combine like terms: 3 + -3 = 0
-5 + -4x + x2 = 0 + 3x + -3x
-5 + -4x + x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
-5 + -4x + x2 = 0

Factor a trinomial.
(-1 + -1x)(5 + -1x) = 0

Subproblem 1

Set the factor '(-1 + -1x)' equal to zero and attempt to solve: Simplifying -1 + -1x = 0 Solving -1 + -1x = 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 + -1x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1x = 0 + 1 -1x = 0 + 1 Combine like terms: 0 + 1 = 1 -1x = 1 Divide each side by '-1'. x = -1 Simplifying x = -1

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-1, 5}

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