x(75-5x)=180

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Solution for x(75-5x)=180 equation:


Simplifying
x(75 + -5x) = 180
(75 * x + -5x * x) = 180
(75x + -5x2) = 180

Solving
75x + -5x2 = 180

Solving for variable 'x'.

Reorder the terms:
-180 + 75x + -5x2 = 180 + -180

Combine like terms: 180 + -180 = 0
-180 + 75x + -5x2 = 0

Factor out the Greatest Common Factor (GCF), '5'.
5(-36 + 15x + -1x2) = 0

Factor a trinomial.
5((-12 + x)(3 + -1x)) = 0

Ignore the factor 5.

Subproblem 1

Set the factor '(-12 + x)' equal to zero and attempt to solve: Simplifying -12 + x = 0 Solving -12 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '12' to each side of the equation. -12 + 12 + x = 0 + 12 Combine like terms: -12 + 12 = 0 0 + x = 0 + 12 x = 0 + 12 Combine like terms: 0 + 12 = 12 x = 12 Simplifying x = 12

Subproblem 2

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

Solution

x = {12, 3}

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