3485x^2-311107.5x-18855000=0

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Solution for 3485x^2-311107.5x-18855000=0 equation:


Simplifying
3485x2 + -311107.5x + -18855000 = 0

Reorder the terms:
-18855000 + -311107.5x + 3485x2 = 0

Solving
-18855000 + -311107.5x + 3485x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
3485 the coefficient of the squared term: 

Divide each side by '3485'.
-5410.329986 + -89.27044476x + x2 = 0

Move the constant term to the right:

Add '5410.329986' to each side of the equation.
-5410.329986 + -89.27044476x + 5410.329986 + x2 = 0 + 5410.329986

Reorder the terms:
-5410.329986 + 5410.329986 + -89.27044476x + x2 = 0 + 5410.329986

Combine like terms: -5410.329986 + 5410.329986 = 0.000000
0.000000 + -89.27044476x + x2 = 0 + 5410.329986
-89.27044476x + x2 = 0 + 5410.329986

Combine like terms: 0 + 5410.329986 = 5410.329986
-89.27044476x + x2 = 5410.329986

The x term is -89.27044476x.  Take half its coefficient (-44.63522238).
Square it (1992.303077) and add it to both sides.

Add '1992.303077' to each side of the equation.
-89.27044476x + 1992.303077 + x2 = 5410.329986 + 1992.303077

Reorder the terms:
1992.303077 + -89.27044476x + x2 = 5410.329986 + 1992.303077

Combine like terms: 5410.329986 + 1992.303077 = 7402.633063
1992.303077 + -89.27044476x + x2 = 7402.633063

Factor a perfect square on the left side:
(x + -44.63522238)(x + -44.63522238) = 7402.633063

Calculate the square root of the right side: 86.038555677

Break this problem into two subproblems by setting 
(x + -44.63522238) equal to 86.038555677 and -86.038555677.

Subproblem 1

x + -44.63522238 = 86.038555677 Simplifying x + -44.63522238 = 86.038555677 Reorder the terms: -44.63522238 + x = 86.038555677 Solving -44.63522238 + x = 86.038555677 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '44.63522238' to each side of the equation. -44.63522238 + 44.63522238 + x = 86.038555677 + 44.63522238 Combine like terms: -44.63522238 + 44.63522238 = 0.00000000 0.00000000 + x = 86.038555677 + 44.63522238 x = 86.038555677 + 44.63522238 Combine like terms: 86.038555677 + 44.63522238 = 130.673778057 x = 130.673778057 Simplifying x = 130.673778057

Subproblem 2

x + -44.63522238 = -86.038555677 Simplifying x + -44.63522238 = -86.038555677 Reorder the terms: -44.63522238 + x = -86.038555677 Solving -44.63522238 + x = -86.038555677 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '44.63522238' to each side of the equation. -44.63522238 + 44.63522238 + x = -86.038555677 + 44.63522238 Combine like terms: -44.63522238 + 44.63522238 = 0.00000000 0.00000000 + x = -86.038555677 + 44.63522238 x = -86.038555677 + 44.63522238 Combine like terms: -86.038555677 + 44.63522238 = -41.403333297 x = -41.403333297 Simplifying x = -41.403333297

Solution

The solution to the problem is based on the solutions from the subproblems. x = {130.673778057, -41.403333297}

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