x(28-x)=180

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Solution for x(28-x)=180 equation:


Simplifying
x(28 + -1x) = 180
(28 * x + -1x * x) = 180
(28x + -1x2) = 180

Solving
28x + -1x2 = 180

Solving for variable 'x'.

Reorder the terms:
-180 + 28x + -1x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-180 + 28x + -1x2 = 0

Factor a trinomial.
(-18 + x)(10 + -1x) = 0

Subproblem 1

Set the factor '(-18 + x)' equal to zero and attempt to solve: Simplifying -18 + x = 0 Solving -18 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + x = 0 + 18 Combine like terms: -18 + 18 = 0 0 + x = 0 + 18 x = 0 + 18 Combine like terms: 0 + 18 = 18 x = 18 Simplifying x = 18

Subproblem 2

Set the factor '(10 + -1x)' equal to zero and attempt to solve: Simplifying 10 + -1x = 0 Solving 10 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1x = 0 + -10 -1x = 0 + -10 Combine like terms: 0 + -10 = -10 -1x = -10 Divide each side by '-1'. x = 10 Simplifying x = 10

Solution

x = {18, 10}

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