x^2-18x+5=9x-3

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Solution for x^2-18x+5=9x-3 equation:


Simplifying
x2 + -18x + 5 = 9x + -3

Reorder the terms:
5 + -18x + x2 = 9x + -3

Reorder the terms:
5 + -18x + x2 = -3 + 9x

Solving
5 + -18x + x2 = -3 + 9x

Solving for variable 'x'.

Reorder the terms:
5 + 3 + -18x + -9x + x2 = -3 + 9x + 3 + -9x

Combine like terms: 5 + 3 = 8
8 + -18x + -9x + x2 = -3 + 9x + 3 + -9x

Combine like terms: -18x + -9x = -27x
8 + -27x + x2 = -3 + 9x + 3 + -9x

Reorder the terms:
8 + -27x + x2 = -3 + 3 + 9x + -9x

Combine like terms: -3 + 3 = 0
8 + -27x + x2 = 0 + 9x + -9x
8 + -27x + x2 = 9x + -9x

Combine like terms: 9x + -9x = 0
8 + -27x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -27x + -8 + x2 = 0 + -8

Reorder the terms:
8 + -8 + -27x + x2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -27x + x2 = 0 + -8
-27x + x2 = 0 + -8

Combine like terms: 0 + -8 = -8
-27x + x2 = -8

The x term is -27x.  Take half its coefficient (-13.5).
Square it (182.25) and add it to both sides.

Add '182.25' to each side of the equation.
-27x + 182.25 + x2 = -8 + 182.25

Reorder the terms:
182.25 + -27x + x2 = -8 + 182.25

Combine like terms: -8 + 182.25 = 174.25
182.25 + -27x + x2 = 174.25

Factor a perfect square on the left side:
(x + -13.5)(x + -13.5) = 174.25

Calculate the square root of the right side: 13.200378782

Break this problem into two subproblems by setting 
(x + -13.5) equal to 13.200378782 and -13.200378782.

Subproblem 1

x + -13.5 = 13.200378782 Simplifying x + -13.5 = 13.200378782 Reorder the terms: -13.5 + x = 13.200378782 Solving -13.5 + x = 13.200378782 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13.5' to each side of the equation. -13.5 + 13.5 + x = 13.200378782 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + x = 13.200378782 + 13.5 x = 13.200378782 + 13.5 Combine like terms: 13.200378782 + 13.5 = 26.700378782 x = 26.700378782 Simplifying x = 26.700378782

Subproblem 2

x + -13.5 = -13.200378782 Simplifying x + -13.5 = -13.200378782 Reorder the terms: -13.5 + x = -13.200378782 Solving -13.5 + x = -13.200378782 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13.5' to each side of the equation. -13.5 + 13.5 + x = -13.200378782 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + x = -13.200378782 + 13.5 x = -13.200378782 + 13.5 Combine like terms: -13.200378782 + 13.5 = 0.299621218 x = 0.299621218 Simplifying x = 0.299621218

Solution

The solution to the problem is based on the solutions from the subproblems. x = {26.700378782, 0.299621218}

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