-55x^2-2062.5x+18342.5=0

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Solution for -55x^2-2062.5x+18342.5=0 equation:


Simplifying
-55x2 + -2062.5x + 18342.5 = 0

Reorder the terms:
18342.5 + -2062.5x + -55x2 = 0

Solving
18342.5 + -2062.5x + -55x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-55 the coefficient of the squared term: 

Divide each side by '-55'.
-333.5 + 37.5x + x2 = 0

Move the constant term to the right:

Add '333.5' to each side of the equation.
-333.5 + 37.5x + 333.5 + x2 = 0 + 333.5

Reorder the terms:
-333.5 + 333.5 + 37.5x + x2 = 0 + 333.5

Combine like terms: -333.5 + 333.5 = 0.0
0.0 + 37.5x + x2 = 0 + 333.5
37.5x + x2 = 0 + 333.5

Combine like terms: 0 + 333.5 = 333.5
37.5x + x2 = 333.5

The x term is 37.5x.  Take half its coefficient (18.75).
Square it (351.5625) and add it to both sides.

Add '351.5625' to each side of the equation.
37.5x + 351.5625 + x2 = 333.5 + 351.5625

Reorder the terms:
351.5625 + 37.5x + x2 = 333.5 + 351.5625

Combine like terms: 333.5 + 351.5625 = 685.0625
351.5625 + 37.5x + x2 = 685.0625

Factor a perfect square on the left side:
(x + 18.75)(x + 18.75) = 685.0625

Calculate the square root of the right side: 26.17369863

Break this problem into two subproblems by setting 
(x + 18.75) equal to 26.17369863 and -26.17369863.

Subproblem 1

x + 18.75 = 26.17369863 Simplifying x + 18.75 = 26.17369863 Reorder the terms: 18.75 + x = 26.17369863 Solving 18.75 + x = 26.17369863 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-18.75' to each side of the equation. 18.75 + -18.75 + x = 26.17369863 + -18.75 Combine like terms: 18.75 + -18.75 = 0.00 0.00 + x = 26.17369863 + -18.75 x = 26.17369863 + -18.75 Combine like terms: 26.17369863 + -18.75 = 7.42369863 x = 7.42369863 Simplifying x = 7.42369863

Subproblem 2

x + 18.75 = -26.17369863 Simplifying x + 18.75 = -26.17369863 Reorder the terms: 18.75 + x = -26.17369863 Solving 18.75 + x = -26.17369863 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-18.75' to each side of the equation. 18.75 + -18.75 + x = -26.17369863 + -18.75 Combine like terms: 18.75 + -18.75 = 0.00 0.00 + x = -26.17369863 + -18.75 x = -26.17369863 + -18.75 Combine like terms: -26.17369863 + -18.75 = -44.92369863 x = -44.92369863 Simplifying x = -44.92369863

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.42369863, -44.92369863}

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