x(x+11)=180

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Solution for x(x+11)=180 equation:


Simplifying
x(x + 11) = 180

Reorder the terms:
x(11 + x) = 180
(11 * x + x * x) = 180
(11x + x2) = 180

Solving
11x + x2 = 180

Solving for variable 'x'.

Reorder the terms:
-180 + 11x + x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-180 + 11x + x2 = 0

Factor a trinomial.
(-20 + -1x)(9 + -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 '(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

Solution

x = {-20, 9}

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