x(200-x)=3600

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Solution for x(200-x)=3600 equation:


Simplifying
x(200 + -1x) = 3600
(200 * x + -1x * x) = 3600
(200x + -1x2) = 3600

Solving
200x + -1x2 = 3600

Solving for variable 'x'.

Reorder the terms:
-3600 + 200x + -1x2 = 3600 + -3600

Combine like terms: 3600 + -3600 = 0
-3600 + 200x + -1x2 = 0

Factor a trinomial.
(-180 + x)(20 + -1x) = 0

Subproblem 1

Set the factor '(-180 + x)' equal to zero and attempt to solve: Simplifying -180 + x = 0 Solving -180 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '180' to each side of the equation. -180 + 180 + x = 0 + 180 Combine like terms: -180 + 180 = 0 0 + x = 0 + 180 x = 0 + 180 Combine like terms: 0 + 180 = 180 x = 180 Simplifying x = 180

Subproblem 2

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

Solution

x = {180, 20}

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