-x^2+54x-222=0

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Solution for -x^2+54x-222=0 equation:


Simplifying
-1x2 + 54x + -222 = 0

Reorder the terms:
-222 + 54x + -1x2 = 0

Solving
-222 + 54x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
222 + -54x + x2 = 0

Move the constant term to the right:

Add '-222' to each side of the equation.
222 + -54x + -222 + x2 = 0 + -222

Reorder the terms:
222 + -222 + -54x + x2 = 0 + -222

Combine like terms: 222 + -222 = 0
0 + -54x + x2 = 0 + -222
-54x + x2 = 0 + -222

Combine like terms: 0 + -222 = -222
-54x + x2 = -222

The x term is -54x.  Take half its coefficient (-27).
Square it (729) and add it to both sides.

Add '729' to each side of the equation.
-54x + 729 + x2 = -222 + 729

Reorder the terms:
729 + -54x + x2 = -222 + 729

Combine like terms: -222 + 729 = 507
729 + -54x + x2 = 507

Factor a perfect square on the left side:
(x + -27)(x + -27) = 507

Calculate the square root of the right side: 22.516660498

Break this problem into two subproblems by setting 
(x + -27) equal to 22.516660498 and -22.516660498.

Subproblem 1

x + -27 = 22.516660498 Simplifying x + -27 = 22.516660498 Reorder the terms: -27 + x = 22.516660498 Solving -27 + x = 22.516660498 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '27' to each side of the equation. -27 + 27 + x = 22.516660498 + 27 Combine like terms: -27 + 27 = 0 0 + x = 22.516660498 + 27 x = 22.516660498 + 27 Combine like terms: 22.516660498 + 27 = 49.516660498 x = 49.516660498 Simplifying x = 49.516660498

Subproblem 2

x + -27 = -22.516660498 Simplifying x + -27 = -22.516660498 Reorder the terms: -27 + x = -22.516660498 Solving -27 + x = -22.516660498 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '27' to each side of the equation. -27 + 27 + x = -22.516660498 + 27 Combine like terms: -27 + 27 = 0 0 + x = -22.516660498 + 27 x = -22.516660498 + 27 Combine like terms: -22.516660498 + 27 = 4.483339502 x = 4.483339502 Simplifying x = 4.483339502

Solution

The solution to the problem is based on the solutions from the subproblems. x = {49.516660498, 4.483339502}

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