3x^2+x-2*(1000000000000)=0

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Solution for 3x^2+x-2*(1000000000000)=0 equation:


Simplifying
3x2 + x + -2(1000000000000) = 0

Multiply -2 * 1000000000000
3x2 + x + -2000000000000 = 0

Reorder the terms:
-2000000000000 + x + 3x2 = 0

Solving
-2000000000000 + x + 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'.
-666666666700 + 0.3333333333x + x2 = 0

Move the constant term to the right:

Add '666666666700' to each side of the equation.
-666666666700 + 0.3333333333x + 666666666700 + x2 = 0 + 666666666700

Reorder the terms:
-666666666700 + 666666666700 + 0.3333333333x + x2 = 0 + 666666666700

Combine like terms: -666666666700 + 666666666700 = 0
0 + 0.3333333333x + x2 = 0 + 666666666700
0.3333333333x + x2 = 0 + 666666666700

Combine like terms: 0 + 666666666700 = 666666666700
0.3333333333x + x2 = 666666666700

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.3333333333x + 0.25 + x2 = 666666666700 + 0.25

Reorder the terms:
0.25 + 0.3333333333x + x2 = 666666666700 + 0.25

Combine like terms: 666666666700 + 0.25 = 666666666700.25
0.25 + 0.3333333333x + x2 = 666666666700.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 666666666700.25

Calculate the square root of the right side: 816496.580948292

Break this problem into two subproblems by setting 
(x + 0.5) equal to 816496.580948292 and -816496.580948292.

Subproblem 1

x + 0.5 = 816496.580948292 Simplifying x + 0.5 = 816496.580948292 Reorder the terms: 0.5 + x = 816496.580948292 Solving 0.5 + x = 816496.580948292 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 816496.580948292 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 816496.580948292 + -0.5 x = 816496.580948292 + -0.5 Combine like terms: 816496.580948292 + -0.5 = 816496.080948292 x = 816496.080948292 Simplifying x = 816496.080948292

Subproblem 2

x + 0.5 = -816496.580948292 Simplifying x + 0.5 = -816496.580948292 Reorder the terms: 0.5 + x = -816496.580948292 Solving 0.5 + x = -816496.580948292 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -816496.580948292 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -816496.580948292 + -0.5 x = -816496.580948292 + -0.5 Combine like terms: -816496.580948292 + -0.5 = -816497.080948292 x = -816497.080948292 Simplifying x = -816497.080948292

Solution

The solution to the problem is based on the solutions from the subproblems. x = {816496.080948292, -816497.080948292}

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