54=27x-x^2

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Solution for 54=27x-x^2 equation:


Simplifying
54 = 27x + -1x2

Solving
54 = 27x + -1x2

Solving for variable 'x'.

Reorder the terms:
54 + -27x + x2 = 27x + -27x + -1x2 + x2

Combine like terms: 27x + -27x = 0
54 + -27x + x2 = 0 + -1x2 + x2
54 + -27x + x2 = -1x2 + x2

Combine like terms: -1x2 + x2 = 0
54 + -27x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-54' to each side of the equation.
54 + -27x + -54 + x2 = 0 + -54

Reorder the terms:
54 + -54 + -27x + x2 = 0 + -54

Combine like terms: 54 + -54 = 0
0 + -27x + x2 = 0 + -54
-27x + x2 = 0 + -54

Combine like terms: 0 + -54 = -54
-27x + x2 = -54

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 = -54 + 182.25

Reorder the terms:
182.25 + -27x + x2 = -54 + 182.25

Combine like terms: -54 + 182.25 = 128.25
182.25 + -27x + x2 = 128.25

Factor a perfect square on the left side:
(x + -13.5)(x + -13.5) = 128.25

Calculate the square root of the right side: 11.324751653

Break this problem into two subproblems by setting 
(x + -13.5) equal to 11.324751653 and -11.324751653.

Subproblem 1

x + -13.5 = 11.324751653 Simplifying x + -13.5 = 11.324751653 Reorder the terms: -13.5 + x = 11.324751653 Solving -13.5 + x = 11.324751653 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 = 11.324751653 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + x = 11.324751653 + 13.5 x = 11.324751653 + 13.5 Combine like terms: 11.324751653 + 13.5 = 24.824751653 x = 24.824751653 Simplifying x = 24.824751653

Subproblem 2

x + -13.5 = -11.324751653 Simplifying x + -13.5 = -11.324751653 Reorder the terms: -13.5 + x = -11.324751653 Solving -13.5 + x = -11.324751653 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 = -11.324751653 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + x = -11.324751653 + 13.5 x = -11.324751653 + 13.5 Combine like terms: -11.324751653 + 13.5 = 2.175248347 x = 2.175248347 Simplifying x = 2.175248347

Solution

The solution to the problem is based on the solutions from the subproblems. x = {24.824751653, 2.175248347}

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