x^2-27x-360=0

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Solution for x^2-27x-360=0 equation:


Simplifying
x2 + -27x + -360 = 0

Reorder the terms:
-360 + -27x + x2 = 0

Solving
-360 + -27x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '360' to each side of the equation.
-360 + -27x + 360 + x2 = 0 + 360

Reorder the terms:
-360 + 360 + -27x + x2 = 0 + 360

Combine like terms: -360 + 360 = 0
0 + -27x + x2 = 0 + 360
-27x + x2 = 0 + 360

Combine like terms: 0 + 360 = 360
-27x + x2 = 360

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 = 360 + 182.25

Reorder the terms:
182.25 + -27x + x2 = 360 + 182.25

Combine like terms: 360 + 182.25 = 542.25
182.25 + -27x + x2 = 542.25

Factor a perfect square on the left side:
(x + -13.5)(x + -13.5) = 542.25

Calculate the square root of the right side: 23.286262044

Break this problem into two subproblems by setting 
(x + -13.5) equal to 23.286262044 and -23.286262044.

Subproblem 1

x + -13.5 = 23.286262044 Simplifying x + -13.5 = 23.286262044 Reorder the terms: -13.5 + x = 23.286262044 Solving -13.5 + x = 23.286262044 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 = 23.286262044 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + x = 23.286262044 + 13.5 x = 23.286262044 + 13.5 Combine like terms: 23.286262044 + 13.5 = 36.786262044 x = 36.786262044 Simplifying x = 36.786262044

Subproblem 2

x + -13.5 = -23.286262044 Simplifying x + -13.5 = -23.286262044 Reorder the terms: -13.5 + x = -23.286262044 Solving -13.5 + x = -23.286262044 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 = -23.286262044 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + x = -23.286262044 + 13.5 x = -23.286262044 + 13.5 Combine like terms: -23.286262044 + 13.5 = -9.786262044 x = -9.786262044 Simplifying x = -9.786262044

Solution

The solution to the problem is based on the solutions from the subproblems. x = {36.786262044, -9.786262044}

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