3x^2-2x-13=-8

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Solution for 3x^2-2x-13=-8 equation:


Simplifying
3x2 + -2x + -13 = -8

Reorder the terms:
-13 + -2x + 3x2 = -8

Solving
-13 + -2x + 3x2 = -8

Solving for variable 'x'.

Reorder the terms:
-13 + 8 + -2x + 3x2 = -8 + 8

Combine like terms: -13 + 8 = -5
-5 + -2x + 3x2 = -8 + 8

Combine like terms: -8 + 8 = 0
-5 + -2x + 3x2 = 0

Factor a trinomial.
(-1 + -1x)(5 + -3x) = 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 + -3x)' equal to zero and attempt to solve: Simplifying 5 + -3x = 0 Solving 5 + -3x = 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 + -3x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3x = 0 + -5 -3x = 0 + -5 Combine like terms: 0 + -5 = -5 -3x = -5 Divide each side by '-3'. x = 1.666666667 Simplifying x = 1.666666667

Solution

x = {-1, 1.666666667}

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