x^2+15=9x+1

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Solution for x^2+15=9x+1 equation:


Simplifying
x2 + 15 = 9x + 1

Reorder the terms:
15 + x2 = 9x + 1

Reorder the terms:
15 + x2 = 1 + 9x

Solving
15 + x2 = 1 + 9x

Solving for variable 'x'.

Reorder the terms:
15 + -1 + -9x + x2 = 1 + 9x + -1 + -9x

Combine like terms: 15 + -1 = 14
14 + -9x + x2 = 1 + 9x + -1 + -9x

Reorder the terms:
14 + -9x + x2 = 1 + -1 + 9x + -9x

Combine like terms: 1 + -1 = 0
14 + -9x + x2 = 0 + 9x + -9x
14 + -9x + x2 = 9x + -9x

Combine like terms: 9x + -9x = 0
14 + -9x + x2 = 0

Factor a trinomial.
(2 + -1x)(7 + -1x) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Solution

x = {2, 7}

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