x^2+15x+80=180

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Solution for x^2+15x+80=180 equation:


Simplifying
x2 + 15x + 80 = 180

Reorder the terms:
80 + 15x + x2 = 180

Solving
80 + 15x + x2 = 180

Solving for variable 'x'.

Reorder the terms:
80 + -180 + 15x + x2 = 180 + -180

Combine like terms: 80 + -180 = -100
-100 + 15x + x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-100 + 15x + x2 = 0

Factor a trinomial.
(-20 + -1x)(5 + -1x) = 0

Subproblem 1

Set the factor '(-20 + -1x)' equal to zero and attempt to solve: Simplifying -20 + -1x = 0 Solving -20 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 20 + -1x = 0 + 20 Combine like terms: -20 + 20 = 0 0 + -1x = 0 + 20 -1x = 0 + 20 Combine like terms: 0 + 20 = 20 -1x = 20 Divide each side by '-1'. x = -20 Simplifying x = -20

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 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 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {-20, 5}

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