(-x^2+20x-36)=0

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Solution for (-x^2+20x-36)=0 equation:


Simplifying
(-1x2 + 20x + -36) = 0

Reorder the terms:
(-36 + 20x + -1x2) = 0

Remove parenthesis around (-36 + 20x + -1x2)
-36 + 20x + -1x2 = 0

Solving
-36 + 20x + -1x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-18 + x)(2 + -1x) = 0

Subproblem 1

Set the factor '(-18 + x)' equal to zero and attempt to solve: Simplifying -18 + x = 0 Solving -18 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '18' to each side of the equation. -18 + 18 + x = 0 + 18 Combine like terms: -18 + 18 = 0 0 + x = 0 + 18 x = 0 + 18 Combine like terms: 0 + 18 = 18 x = 18 Simplifying x = 18

Subproblem 2

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

Solution

x = {18, 2}

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