(15-x)(20-x)=234

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Solution for (15-x)(20-x)=234 equation:


Simplifying
(15 + -1x)(20 + -1x) = 234

Multiply (15 + -1x) * (20 + -1x)
(15(20 + -1x) + -1x * (20 + -1x)) = 234
((20 * 15 + -1x * 15) + -1x * (20 + -1x)) = 234
((300 + -15x) + -1x * (20 + -1x)) = 234
(300 + -15x + (20 * -1x + -1x * -1x)) = 234
(300 + -15x + (-20x + 1x2)) = 234

Combine like terms: -15x + -20x = -35x
(300 + -35x + 1x2) = 234

Solving
300 + -35x + 1x2 = 234

Solving for variable 'x'.

Reorder the terms:
300 + -234 + -35x + 1x2 = 234 + -234

Combine like terms: 300 + -234 = 66
66 + -35x + 1x2 = 234 + -234

Combine like terms: 234 + -234 = 0
66 + -35x + 1x2 = 0

Factor a trinomial.
(2 + -1x)(33 + -1x) = 0

Subproblem 1

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Subproblem 2

Set the factor '(33 + -1x)' equal to zero and attempt to solve: Simplifying 33 + -1x = 0 Solving 33 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-33' to each side of the equation. 33 + -33 + -1x = 0 + -33 Combine like terms: 33 + -33 = 0 0 + -1x = 0 + -33 -1x = 0 + -33 Combine like terms: 0 + -33 = -33 -1x = -33 Divide each side by '-1'. x = 33 Simplifying x = 33

Solution

x = {2, 33}

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