x^2+3x-2012=0

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Solution for x^2+3x-2012=0 equation:


Simplifying
x2 + 3x + -2012 = 0

Reorder the terms:
-2012 + 3x + x2 = 0

Solving
-2012 + 3x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '2012' to each side of the equation.
-2012 + 3x + 2012 + x2 = 0 + 2012

Reorder the terms:
-2012 + 2012 + 3x + x2 = 0 + 2012

Combine like terms: -2012 + 2012 = 0
0 + 3x + x2 = 0 + 2012
3x + x2 = 0 + 2012

Combine like terms: 0 + 2012 = 2012
3x + x2 = 2012

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = 2012 + 2.25

Reorder the terms:
2.25 + 3x + x2 = 2012 + 2.25

Combine like terms: 2012 + 2.25 = 2014.25
2.25 + 3x + x2 = 2014.25

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = 2014.25

Calculate the square root of the right side: 44.880396611

Break this problem into two subproblems by setting 
(x + 1.5) equal to 44.880396611 and -44.880396611.

Subproblem 1

x + 1.5 = 44.880396611 Simplifying x + 1.5 = 44.880396611 Reorder the terms: 1.5 + x = 44.880396611 Solving 1.5 + x = 44.880396611 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 44.880396611 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 44.880396611 + -1.5 x = 44.880396611 + -1.5 Combine like terms: 44.880396611 + -1.5 = 43.380396611 x = 43.380396611 Simplifying x = 43.380396611

Subproblem 2

x + 1.5 = -44.880396611 Simplifying x + 1.5 = -44.880396611 Reorder the terms: 1.5 + x = -44.880396611 Solving 1.5 + x = -44.880396611 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -44.880396611 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -44.880396611 + -1.5 x = -44.880396611 + -1.5 Combine like terms: -44.880396611 + -1.5 = -46.380396611 x = -46.380396611 Simplifying x = -46.380396611

Solution

The solution to the problem is based on the solutions from the subproblems. x = {43.380396611, -46.380396611}

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