x^2-20x-76=-7

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Solution for x^2-20x-76=-7 equation:


Simplifying
x2 + -20x + -76 = -7

Reorder the terms:
-76 + -20x + x2 = -7

Solving
-76 + -20x + x2 = -7

Solving for variable 'x'.

Reorder the terms:
-76 + 7 + -20x + x2 = -7 + 7

Combine like terms: -76 + 7 = -69
-69 + -20x + x2 = -7 + 7

Combine like terms: -7 + 7 = 0
-69 + -20x + x2 = 0

Factor a trinomial.
(-3 + -1x)(23 + -1x) = 0

Subproblem 1

Set the factor '(-3 + -1x)' equal to zero and attempt to solve: Simplifying -3 + -1x = 0 Solving -3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -1x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -1x = 0 + 3 -1x = 0 + 3 Combine like terms: 0 + 3 = 3 -1x = 3 Divide each side by '-1'. x = -3 Simplifying x = -3

Subproblem 2

Set the factor '(23 + -1x)' equal to zero and attempt to solve: Simplifying 23 + -1x = 0 Solving 23 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-23' to each side of the equation. 23 + -23 + -1x = 0 + -23 Combine like terms: 23 + -23 = 0 0 + -1x = 0 + -23 -1x = 0 + -23 Combine like terms: 0 + -23 = -23 -1x = -23 Divide each side by '-1'. x = 23 Simplifying x = 23

Solution

x = {-3, 23}

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