(x+13)(x-1)=

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Solution for (x+13)(x-1)= equation:


Simplifying
(x + 13)(x + -1) = 0

Reorder the terms:
(13 + x)(x + -1) = 0

Reorder the terms:
(13 + x)(-1 + x) = 0

Multiply (13 + x) * (-1 + x)
(13(-1 + x) + x(-1 + x)) = 0
((-1 * 13 + x * 13) + x(-1 + x)) = 0
((-13 + 13x) + x(-1 + x)) = 0
(-13 + 13x + (-1 * x + x * x)) = 0
(-13 + 13x + (-1x + x2)) = 0

Combine like terms: 13x + -1x = 12x
(-13 + 12x + x2) = 0

Solving
-13 + 12x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-13 + -1x)(1 + -1x) = 0

Subproblem 1

Set the factor '(-13 + -1x)' equal to zero and attempt to solve: Simplifying -13 + -1x = 0 Solving -13 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + -1x = 0 + 13 Combine like terms: -13 + 13 = 0 0 + -1x = 0 + 13 -1x = 0 + 13 Combine like terms: 0 + 13 = 13 -1x = 13 Divide each side by '-1'. x = -13 Simplifying x = -13

Subproblem 2

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

Solution

x = {-13, 1}

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