2000000*x+3x*x=250000000

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Solution for 2000000*x+3x*x=250000000 equation:


Simplifying
2000000x + 3x * x = 250000000

Multiply x * x
2000000x + 3x2 = 250000000

Solving
2000000x + 3x2 = 250000000

Solving for variable 'x'.

Reorder the terms:
-250000000 + 2000000x + 3x2 = 250000000 + -250000000

Combine like terms: 250000000 + -250000000 = 0
-250000000 + 2000000x + 3x2 = 0

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

Divide each side by '3'.
-83333333.33 + 666666.6667x + x2 = 0

Move the constant term to the right:

Add '83333333.33' to each side of the equation.
-83333333.33 + 666666.6667x + 83333333.33 + x2 = 0 + 83333333.33

Reorder the terms:
-83333333.33 + 83333333.33 + 666666.6667x + x2 = 0 + 83333333.33

Combine like terms: -83333333.33 + 83333333.33 = 0.00
0.00 + 666666.6667x + x2 = 0 + 83333333.33
666666.6667x + x2 = 0 + 83333333.33

Combine like terms: 0 + 83333333.33 = 83333333.33
666666.6667x + x2 = 83333333.33

The x term is 666666.6667x.  Take half its coefficient (333333.3334).
Square it (111111111200) and add it to both sides.

Add '111111111200' to each side of the equation.
666666.6667x + 111111111200 + x2 = 83333333.33 + 111111111200

Reorder the terms:
111111111200 + 666666.6667x + x2 = 83333333.33 + 111111111200

Combine like terms: 83333333.33 + 111111111200 = 111194444533.33
111111111200 + 666666.6667x + x2 = 111194444533.33

Factor a perfect square on the left side:
(x + 333333.3334)(x + 333333.3334) = 111194444533.33

Calculate the square root of the right side: 333458.310037897

Break this problem into two subproblems by setting 
(x + 333333.3334) equal to 333458.310037897 and -333458.310037897.

Subproblem 1

x + 333333.3334 = 333458.310037897 Simplifying x + 333333.3334 = 333458.310037897 Reorder the terms: 333333.3334 + x = 333458.310037897 Solving 333333.3334 + x = 333458.310037897 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-333333.3334' to each side of the equation. 333333.3334 + -333333.3334 + x = 333458.310037897 + -333333.3334 Combine like terms: 333333.3334 + -333333.3334 = 0.0000 0.0000 + x = 333458.310037897 + -333333.3334 x = 333458.310037897 + -333333.3334 Combine like terms: 333458.310037897 + -333333.3334 = 124.976637897 x = 124.976637897 Simplifying x = 124.976637897

Subproblem 2

x + 333333.3334 = -333458.310037897 Simplifying x + 333333.3334 = -333458.310037897 Reorder the terms: 333333.3334 + x = -333458.310037897 Solving 333333.3334 + x = -333458.310037897 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-333333.3334' to each side of the equation. 333333.3334 + -333333.3334 + x = -333458.310037897 + -333333.3334 Combine like terms: 333333.3334 + -333333.3334 = 0.0000 0.0000 + x = -333458.310037897 + -333333.3334 x = -333458.310037897 + -333333.3334 Combine like terms: -333458.310037897 + -333333.3334 = -666791.643437897 x = -666791.643437897 Simplifying x = -666791.643437897

Solution

The solution to the problem is based on the solutions from the subproblems. x = {124.976637897, -666791.643437897}

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