-1.624x^2+38.653x-178.768=0

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Solution for -1.624x^2+38.653x-178.768=0 equation:


Simplifying
-1.624x2 + 38.653x + -178.768 = 0

Reorder the terms:
-178.768 + 38.653x + -1.624x2 = 0

Solving
-178.768 + 38.653x + -1.624x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1.624 the coefficient of the squared term: 

Divide each side by '-1.624'.
110.0788177 + -23.80110837x + x2 = 0

Move the constant term to the right:

Add '-110.0788177' to each side of the equation.
110.0788177 + -23.80110837x + -110.0788177 + x2 = 0 + -110.0788177

Reorder the terms:
110.0788177 + -110.0788177 + -23.80110837x + x2 = 0 + -110.0788177

Combine like terms: 110.0788177 + -110.0788177 = 0.0000000
0.0000000 + -23.80110837x + x2 = 0 + -110.0788177
-23.80110837x + x2 = 0 + -110.0788177

Combine like terms: 0 + -110.0788177 = -110.0788177
-23.80110837x + x2 = -110.0788177

The x term is -23.80110837x.  Take half its coefficient (-11.90055419).
Square it (141.6231900) and add it to both sides.

Add '141.6231900' to each side of the equation.
-23.80110837x + 141.6231900 + x2 = -110.0788177 + 141.6231900

Reorder the terms:
141.6231900 + -23.80110837x + x2 = -110.0788177 + 141.6231900

Combine like terms: -110.0788177 + 141.6231900 = 31.5443723
141.6231900 + -23.80110837x + x2 = 31.5443723

Factor a perfect square on the left side:
(x + -11.90055419)(x + -11.90055419) = 31.5443723

Calculate the square root of the right side: 5.616437688

Break this problem into two subproblems by setting 
(x + -11.90055419) equal to 5.616437688 and -5.616437688.

Subproblem 1

x + -11.90055419 = 5.616437688 Simplifying x + -11.90055419 = 5.616437688 Reorder the terms: -11.90055419 + x = 5.616437688 Solving -11.90055419 + x = 5.616437688 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.90055419' to each side of the equation. -11.90055419 + 11.90055419 + x = 5.616437688 + 11.90055419 Combine like terms: -11.90055419 + 11.90055419 = 0.00000000 0.00000000 + x = 5.616437688 + 11.90055419 x = 5.616437688 + 11.90055419 Combine like terms: 5.616437688 + 11.90055419 = 17.516991878 x = 17.516991878 Simplifying x = 17.516991878

Subproblem 2

x + -11.90055419 = -5.616437688 Simplifying x + -11.90055419 = -5.616437688 Reorder the terms: -11.90055419 + x = -5.616437688 Solving -11.90055419 + x = -5.616437688 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.90055419' to each side of the equation. -11.90055419 + 11.90055419 + x = -5.616437688 + 11.90055419 Combine like terms: -11.90055419 + 11.90055419 = 0.00000000 0.00000000 + x = -5.616437688 + 11.90055419 x = -5.616437688 + 11.90055419 Combine like terms: -5.616437688 + 11.90055419 = 6.284116502 x = 6.284116502 Simplifying x = 6.284116502

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.516991878, 6.284116502}

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