-41x^2+180x-164=0

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Solution for -41x^2+180x-164=0 equation:


Simplifying
-41x2 + 180x + -164 = 0

Reorder the terms:
-164 + 180x + -41x2 = 0

Solving
-164 + 180x + -41x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-41 the coefficient of the squared term: 

Divide each side by '-41'.
4 + -4.390243902x + x2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -4.390243902x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + -4.390243902x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -4.390243902x + x2 = 0 + -4
-4.390243902x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
-4.390243902x + x2 = -4

The x term is -4.390243902x.  Take half its coefficient (-2.195121951).
Square it (4.818560380) and add it to both sides.

Add '4.818560380' to each side of the equation.
-4.390243902x + 4.818560380 + x2 = -4 + 4.818560380

Reorder the terms:
4.818560380 + -4.390243902x + x2 = -4 + 4.818560380

Combine like terms: -4 + 4.818560380 = 0.81856038
4.818560380 + -4.390243902x + x2 = 0.81856038

Factor a perfect square on the left side:
(x + -2.195121951)(x + -2.195121951) = 0.81856038

Calculate the square root of the right side: 0.904743267

Break this problem into two subproblems by setting 
(x + -2.195121951) equal to 0.904743267 and -0.904743267.

Subproblem 1

x + -2.195121951 = 0.904743267 Simplifying x + -2.195121951 = 0.904743267 Reorder the terms: -2.195121951 + x = 0.904743267 Solving -2.195121951 + x = 0.904743267 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.195121951' to each side of the equation. -2.195121951 + 2.195121951 + x = 0.904743267 + 2.195121951 Combine like terms: -2.195121951 + 2.195121951 = 0.000000000 0.000000000 + x = 0.904743267 + 2.195121951 x = 0.904743267 + 2.195121951 Combine like terms: 0.904743267 + 2.195121951 = 3.099865218 x = 3.099865218 Simplifying x = 3.099865218

Subproblem 2

x + -2.195121951 = -0.904743267 Simplifying x + -2.195121951 = -0.904743267 Reorder the terms: -2.195121951 + x = -0.904743267 Solving -2.195121951 + x = -0.904743267 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.195121951' to each side of the equation. -2.195121951 + 2.195121951 + x = -0.904743267 + 2.195121951 Combine like terms: -2.195121951 + 2.195121951 = 0.000000000 0.000000000 + x = -0.904743267 + 2.195121951 x = -0.904743267 + 2.195121951 Combine like terms: -0.904743267 + 2.195121951 = 1.290378684 x = 1.290378684 Simplifying x = 1.290378684

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.099865218, 1.290378684}

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