3=x^2+6x-13

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Solution for 3=x^2+6x-13 equation:


Simplifying
3 = x2 + 6x + -13

Reorder the terms:
3 = -13 + 6x + x2

Solving
3 = -13 + 6x + x2

Solving for variable 'x'.

Combine like terms: 3 + 13 = 16
16 + -6x + -1x2 = -13 + 6x + x2 + 13 + -6x + -1x2

Reorder the terms:
16 + -6x + -1x2 = -13 + 13 + 6x + -6x + x2 + -1x2

Combine like terms: -13 + 13 = 0
16 + -6x + -1x2 = 0 + 6x + -6x + x2 + -1x2
16 + -6x + -1x2 = 6x + -6x + x2 + -1x2

Combine like terms: 6x + -6x = 0
16 + -6x + -1x2 = 0 + x2 + -1x2
16 + -6x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
16 + -6x + -1x2 = 0

Factor a trinomial.
(2 + -1x)(8 + x) = 0

Subproblem 1

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 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 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Subproblem 2

Set the factor '(8 + x)' equal to zero and attempt to solve: Simplifying 8 + x = 0 Solving 8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + x = 0 + -8 x = 0 + -8 Combine like terms: 0 + -8 = -8 x = -8 Simplifying x = -8

Solution

x = {2, -8}

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