x^2+3=9x-17

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Solution for x^2+3=9x-17 equation:


Simplifying
x2 + 3 = 9x + -17

Reorder the terms:
3 + x2 = 9x + -17

Reorder the terms:
3 + x2 = -17 + 9x

Solving
3 + x2 = -17 + 9x

Solving for variable 'x'.

Reorder the terms:
3 + 17 + -9x + x2 = -17 + 9x + 17 + -9x

Combine like terms: 3 + 17 = 20
20 + -9x + x2 = -17 + 9x + 17 + -9x

Reorder the terms:
20 + -9x + x2 = -17 + 17 + 9x + -9x

Combine like terms: -17 + 17 = 0
20 + -9x + x2 = 0 + 9x + -9x
20 + -9x + x2 = 9x + -9x

Combine like terms: 9x + -9x = 0
20 + -9x + x2 = 0

Factor a trinomial.
(4 + -1x)(5 + -1x) = 0

Subproblem 1

Set the factor '(4 + -1x)' equal to zero and attempt to solve: Simplifying 4 + -1x = 0 Solving 4 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1x = 0 + -4 -1x = 0 + -4 Combine like terms: 0 + -4 = -4 -1x = -4 Divide each side by '-1'. x = 4 Simplifying x = 4

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 = {4, 5}

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