30x+x^2=10800

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Solution for 30x+x^2=10800 equation:


Simplifying
30x + x2 = 10800

Solving
30x + x2 = 10800

Solving for variable 'x'.

Reorder the terms:
-10800 + 30x + x2 = 10800 + -10800

Combine like terms: 10800 + -10800 = 0
-10800 + 30x + x2 = 0

Factor a trinomial.
(-120 + -1x)(90 + -1x) = 0

Subproblem 1

Set the factor '(-120 + -1x)' equal to zero and attempt to solve: Simplifying -120 + -1x = 0 Solving -120 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '120' to each side of the equation. -120 + 120 + -1x = 0 + 120 Combine like terms: -120 + 120 = 0 0 + -1x = 0 + 120 -1x = 0 + 120 Combine like terms: 0 + 120 = 120 -1x = 120 Divide each side by '-1'. x = -120 Simplifying x = -120

Subproblem 2

Set the factor '(90 + -1x)' equal to zero and attempt to solve: Simplifying 90 + -1x = 0 Solving 90 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-90' to each side of the equation. 90 + -90 + -1x = 0 + -90 Combine like terms: 90 + -90 = 0 0 + -1x = 0 + -90 -1x = 0 + -90 Combine like terms: 0 + -90 = -90 -1x = -90 Divide each side by '-1'. x = 90 Simplifying x = 90

Solution

x = {-120, 90}

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