5x-8=x^2-2x-26

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Solution for 5x-8=x^2-2x-26 equation:


Simplifying
5x + -8 = x2 + -2x + -26

Reorder the terms:
-8 + 5x = x2 + -2x + -26

Reorder the terms:
-8 + 5x = -26 + -2x + x2

Solving
-8 + 5x = -26 + -2x + x2

Solving for variable 'x'.

Reorder the terms:
-8 + 26 + 5x + 2x + -1x2 = -26 + -2x + x2 + 26 + 2x + -1x2

Combine like terms: -8 + 26 = 18
18 + 5x + 2x + -1x2 = -26 + -2x + x2 + 26 + 2x + -1x2

Combine like terms: 5x + 2x = 7x
18 + 7x + -1x2 = -26 + -2x + x2 + 26 + 2x + -1x2

Reorder the terms:
18 + 7x + -1x2 = -26 + 26 + -2x + 2x + x2 + -1x2

Combine like terms: -26 + 26 = 0
18 + 7x + -1x2 = 0 + -2x + 2x + x2 + -1x2
18 + 7x + -1x2 = -2x + 2x + x2 + -1x2

Combine like terms: -2x + 2x = 0
18 + 7x + -1x2 = 0 + x2 + -1x2
18 + 7x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
18 + 7x + -1x2 = 0

Factor a trinomial.
(9 + -1x)(2 + x) = 0

Subproblem 1

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Subproblem 2

Set the factor '(2 + x)' equal to zero and attempt to solve: Simplifying 2 + x = 0 Solving 2 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + x = 0 + -2 x = 0 + -2 Combine like terms: 0 + -2 = -2 x = -2 Simplifying x = -2

Solution

x = {9, -2}

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