75x-x^2=900

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Solution for 75x-x^2=900 equation:


Simplifying
75x + -1x2 = 900

Solving
75x + -1x2 = 900

Solving for variable 'x'.

Reorder the terms:
-900 + 75x + -1x2 = 900 + -900

Combine like terms: 900 + -900 = 0
-900 + 75x + -1x2 = 0

Factor a trinomial.
(-60 + x)(15 + -1x) = 0

Subproblem 1

Set the factor '(-60 + x)' equal to zero and attempt to solve: Simplifying -60 + x = 0 Solving -60 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '60' to each side of the equation. -60 + 60 + x = 0 + 60 Combine like terms: -60 + 60 = 0 0 + x = 0 + 60 x = 0 + 60 Combine like terms: 0 + 60 = 60 x = 60 Simplifying x = 60

Subproblem 2

Set the factor '(15 + -1x)' equal to zero and attempt to solve: Simplifying 15 + -1x = 0 Solving 15 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + -1x = 0 + -15 Combine like terms: 15 + -15 = 0 0 + -1x = 0 + -15 -1x = 0 + -15 Combine like terms: 0 + -15 = -15 -1x = -15 Divide each side by '-1'. x = 15 Simplifying x = 15

Solution

x = {60, 15}

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