(200+x)*(300+x)=120000

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Solution for (200+x)*(300+x)=120000 equation:


Simplifying
(200 + x)(300 + x) = 120000

Multiply (200 + x) * (300 + x)
(200(300 + x) + x(300 + x)) = 120000
((300 * 200 + x * 200) + x(300 + x)) = 120000
((60000 + 200x) + x(300 + x)) = 120000
(60000 + 200x + (300 * x + x * x)) = 120000
(60000 + 200x + (300x + x2)) = 120000

Combine like terms: 200x + 300x = 500x
(60000 + 500x + x2) = 120000

Solving
60000 + 500x + x2 = 120000

Solving for variable 'x'.

Reorder the terms:
60000 + -120000 + 500x + x2 = 120000 + -120000

Combine like terms: 60000 + -120000 = -60000
-60000 + 500x + x2 = 120000 + -120000

Combine like terms: 120000 + -120000 = 0
-60000 + 500x + x2 = 0

Factor a trinomial.
(-600 + -1x)(100 + -1x) = 0

Subproblem 1

Set the factor '(-600 + -1x)' equal to zero and attempt to solve: Simplifying -600 + -1x = 0 Solving -600 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '600' to each side of the equation. -600 + 600 + -1x = 0 + 600 Combine like terms: -600 + 600 = 0 0 + -1x = 0 + 600 -1x = 0 + 600 Combine like terms: 0 + 600 = 600 -1x = 600 Divide each side by '-1'. x = -600 Simplifying x = -600

Subproblem 2

Set the factor '(100 + -1x)' equal to zero and attempt to solve: Simplifying 100 + -1x = 0 Solving 100 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-100' to each side of the equation. 100 + -100 + -1x = 0 + -100 Combine like terms: 100 + -100 = 0 0 + -1x = 0 + -100 -1x = 0 + -100 Combine like terms: 0 + -100 = -100 -1x = -100 Divide each side by '-1'. x = 100 Simplifying x = 100

Solution

x = {-600, 100}

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