2*x*x+3x-203238=0

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Solution for 2*x*x+3x-203238=0 equation:


Simplifying
2x * x + 3x + -203238 = 0

Multiply x * x
2x2 + 3x + -203238 = 0

Reorder the terms:
-203238 + 3x + 2x2 = 0

Solving
-203238 + 3x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
-101619 + 1.5x + x2 = 0

Move the constant term to the right:

Add '101619' to each side of the equation.
-101619 + 1.5x + 101619 + x2 = 0 + 101619

Reorder the terms:
-101619 + 101619 + 1.5x + x2 = 0 + 101619

Combine like terms: -101619 + 101619 = 0
0 + 1.5x + x2 = 0 + 101619
1.5x + x2 = 0 + 101619

Combine like terms: 0 + 101619 = 101619
1.5x + x2 = 101619

The x term is 1.5x.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5x + 0.5625 + x2 = 101619 + 0.5625

Reorder the terms:
0.5625 + 1.5x + x2 = 101619 + 0.5625

Combine like terms: 101619 + 0.5625 = 101619.5625
0.5625 + 1.5x + x2 = 101619.5625

Factor a perfect square on the left side:
(x + 0.75)(x + 0.75) = 101619.5625

Calculate the square root of the right side: 318.778234044

Break this problem into two subproblems by setting 
(x + 0.75) equal to 318.778234044 and -318.778234044.

Subproblem 1

x + 0.75 = 318.778234044 Simplifying x + 0.75 = 318.778234044 Reorder the terms: 0.75 + x = 318.778234044 Solving 0.75 + x = 318.778234044 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = 318.778234044 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = 318.778234044 + -0.75 x = 318.778234044 + -0.75 Combine like terms: 318.778234044 + -0.75 = 318.028234044 x = 318.028234044 Simplifying x = 318.028234044

Subproblem 2

x + 0.75 = -318.778234044 Simplifying x + 0.75 = -318.778234044 Reorder the terms: 0.75 + x = -318.778234044 Solving 0.75 + x = -318.778234044 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + x = -318.778234044 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + x = -318.778234044 + -0.75 x = -318.778234044 + -0.75 Combine like terms: -318.778234044 + -0.75 = -319.528234044 x = -319.528234044 Simplifying x = -319.528234044

Solution

The solution to the problem is based on the solutions from the subproblems. x = {318.028234044, -319.528234044}

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