-x^2+10x-16=9

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Solution for -x^2+10x-16=9 equation:


Simplifying
-1x2 + 10x + -16 = 9

Reorder the terms:
-16 + 10x + -1x2 = 9

Solving
-16 + 10x + -1x2 = 9

Solving for variable 'x'.

Reorder the terms:
-16 + -9 + 10x + -1x2 = 9 + -9

Combine like terms: -16 + -9 = -25
-25 + 10x + -1x2 = 9 + -9

Combine like terms: 9 + -9 = 0
-25 + 10x + -1x2 = 0

Factor a trinomial.
(-5 + x)(5 + -1x) = 0

Subproblem 1

Set the factor '(-5 + x)' equal to zero and attempt to solve: Simplifying -5 + x = 0 Solving -5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + x = 0 + 5 x = 0 + 5 Combine like terms: 0 + 5 = 5 x = 5 Simplifying x = 5

Subproblem 2

Set the factor '(5 + -1x)' equal to zero and attempt to solve: Simplifying 5 + -1x = 0 Solving 5 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1x = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x = 0 + -5 -1x = 0 + -5 Combine like terms: 0 + -5 = -5 -1x = -5 Divide each side by '-1'. x = 5 Simplifying x = 5

Solution

x = {5, 5}

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