3x^2+2x-496=0

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Solution for 3x^2+2x-496=0 equation: 


Simplifying
3x2 + 2x + -496 = 0

Reorder the terms:
-496 + 2x + 3x2 = 0

Solving
-496 + 2x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-165.3333333 + 0.6666666667x + x2 = 0

Move the constant term to the right:

Add '165.3333333' to each side of the equation.
-165.3333333 + 0.6666666667x + 165.3333333 + x2 = 0 + 165.3333333

Reorder the terms:
-165.3333333 + 165.3333333 + 0.6666666667x + x2 = 0 + 165.3333333

Combine like terms: -165.3333333 + 165.3333333 = 0.0000000
0.0000000 + 0.6666666667x + x2 = 0 + 165.3333333
0.6666666667x + x2 = 0 + 165.3333333

Combine like terms: 0 + 165.3333333 = 165.3333333
0.6666666667x + x2 = 165.3333333

The x term is 0.6666666667x.  Take half its coefficient (0.3333333334).
Square it (0.1111111112) and add it to both sides.

Add '0.1111111112' to each side of the equation.
0.6666666667x + 0.1111111112 + x2 = 165.3333333 + 0.1111111112

Reorder the terms:
0.1111111112 + 0.6666666667x + x2 = 165.3333333 + 0.1111111112

Combine like terms: 165.3333333 + 0.1111111112 = 165.4444444112
0.1111111112 + 0.6666666667x + x2 = 165.4444444112

Factor a perfect square on the left side:
(x + 0.3333333334)(x + 0.3333333334) = 165.4444444112

Calculate the square root of the right side: 12.86252092

Break this problem into two subproblems by setting 
(x + 0.3333333334) equal to 12.86252092 and -12.86252092.


Subproblem 1
x + 0.3333333334 = 12.86252092

Simplifying
x + 0.3333333334 = 12.86252092

Reorder the terms:
0.3333333334 + x = 12.86252092

Solving
0.3333333334 + x = 12.86252092

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-0.3333333334' to each side of the equation.
0.3333333334 + -0.3333333334 + x = 12.86252092 + -0.3333333334

Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000
0.0000000000 + x = 12.86252092 + -0.3333333334
x = 12.86252092 + -0.3333333334

Combine like terms: 12.86252092 + -0.3333333334 = 12.5291875866
x = 12.5291875866

Simplifying
x = 12.5291875866


Subproblem 2
x + 0.3333333334 = -12.86252092

Simplifying
x + 0.3333333334 = -12.86252092

Reorder the terms:
0.3333333334 + x = -12.86252092

Solving
0.3333333334 + x = -12.86252092

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-0.3333333334' to each side of the equation.
0.3333333334 + -0.3333333334 + x = -12.86252092 + -0.3333333334

Combine like terms: 0.3333333334 + -0.3333333334 = 0.0000000000
0.0000000000 + x = -12.86252092 + -0.3333333334
x = -12.86252092 + -0.3333333334

Combine like terms: -12.86252092 + -0.3333333334 = -13.1958542534
x = -13.1958542534

Simplifying
x = -13.1958542534


Solution
The solution to the problem is based on the solutions
from the subproblems.
x = {12.5291875866, -13.1958542534}

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