(375+x)(240+x)-8100=0

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Solution for (375+x)(240+x)-8100=0 equation:


Simplifying
(375 + x)(240 + x) + -8100 = 0

Multiply (375 + x) * (240 + x)
(375(240 + x) + x(240 + x)) + -8100 = 0
((240 * 375 + x * 375) + x(240 + x)) + -8100 = 0
((90000 + 375x) + x(240 + x)) + -8100 = 0
(90000 + 375x + (240 * x + x * x)) + -8100 = 0
(90000 + 375x + (240x + x2)) + -8100 = 0

Combine like terms: 375x + 240x = 615x
(90000 + 615x + x2) + -8100 = 0

Reorder the terms:
90000 + -8100 + 615x + x2 = 0

Combine like terms: 90000 + -8100 = 81900
81900 + 615x + x2 = 0

Solving
81900 + 615x + x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(420 + x)(195 + x) = 0

Subproblem 1

Set the factor '(420 + x)' equal to zero and attempt to solve: Simplifying 420 + x = 0 Solving 420 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-420' to each side of the equation. 420 + -420 + x = 0 + -420 Combine like terms: 420 + -420 = 0 0 + x = 0 + -420 x = 0 + -420 Combine like terms: 0 + -420 = -420 x = -420 Simplifying x = -420

Subproblem 2

Set the factor '(195 + x)' equal to zero and attempt to solve: Simplifying 195 + x = 0 Solving 195 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-195' to each side of the equation. 195 + -195 + x = 0 + -195 Combine like terms: 195 + -195 = 0 0 + x = 0 + -195 x = 0 + -195 Combine like terms: 0 + -195 = -195 x = -195 Simplifying x = -195

Solution

x = {-420, -195}

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