0=-.3334x*x-2x+2.3334

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Solution for 0=-.3334x*x-2x+2.3334 equation:


Simplifying
0 = -0.3334x * x + -2x + 2.3334

Multiply x * x
0 = -0.3334x2 + -2x + 2.3334

Reorder the terms:
0 = 2.3334 + -2x + -0.3334x2

Solving
0 = 2.3334 + -2x + -0.3334x2

Solving for variable 'x'.

Combine like terms: 0 + -2.3334 = -2.3334
-2.3334 + 2x + 0.3334x2 = 2.3334 + -2x + -0.3334x2 + -2.3334 + 2x + 0.3334x2

Reorder the terms:
-2.3334 + 2x + 0.3334x2 = 2.3334 + -2.3334 + -2x + 2x + -0.3334x2 + 0.3334x2

Combine like terms: 2.3334 + -2.3334 = 0.0000
-2.3334 + 2x + 0.3334x2 = 0.0000 + -2x + 2x + -0.3334x2 + 0.3334x2
-2.3334 + 2x + 0.3334x2 = -2x + 2x + -0.3334x2 + 0.3334x2

Combine like terms: -2x + 2x = 0
-2.3334 + 2x + 0.3334x2 = 0 + -0.3334x2 + 0.3334x2
-2.3334 + 2x + 0.3334x2 = -0.3334x2 + 0.3334x2

Combine like terms: -0.3334x2 + 0.3334x2 = 0.0000
-2.3334 + 2x + 0.3334x2 = 0.0000

Begin completing the square.  Divide all terms by
0.3334 the coefficient of the squared term: 

Divide each side by '0.3334'.
-6.99880024 + 5.99880024x + x2 = 0

Move the constant term to the right:

Add '6.99880024' to each side of the equation.
-6.99880024 + 5.99880024x + 6.99880024 + x2 = 0 + 6.99880024

Reorder the terms:
-6.99880024 + 6.99880024 + 5.99880024x + x2 = 0 + 6.99880024

Combine like terms: -6.99880024 + 6.99880024 = 0.00000000
0.00000000 + 5.99880024x + x2 = 0 + 6.99880024
5.99880024x + x2 = 0 + 6.99880024

Combine like terms: 0 + 6.99880024 = 6.99880024
5.99880024x + x2 = 6.99880024

The x term is 5.99880024x.  Take half its coefficient (2.99940012).
Square it (8.996401080) and add it to both sides.

Add '8.996401080' to each side of the equation.
5.99880024x + 8.996401080 + x2 = 6.99880024 + 8.996401080

Reorder the terms:
8.996401080 + 5.99880024x + x2 = 6.99880024 + 8.996401080

Combine like terms: 6.99880024 + 8.996401080 = 15.99520132
8.996401080 + 5.99880024x + x2 = 15.99520132

Factor a perfect square on the left side:
(x + 2.99940012)(x + 2.99940012) = 15.99520132

Calculate the square root of the right side: 3.99940012

Break this problem into two subproblems by setting 
(x + 2.99940012) equal to 3.99940012 and -3.99940012.

Subproblem 1

x + 2.99940012 = 3.99940012 Simplifying x + 2.99940012 = 3.99940012 Reorder the terms: 2.99940012 + x = 3.99940012 Solving 2.99940012 + x = 3.99940012 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.99940012' to each side of the equation. 2.99940012 + -2.99940012 + x = 3.99940012 + -2.99940012 Combine like terms: 2.99940012 + -2.99940012 = 0.00000000 0.00000000 + x = 3.99940012 + -2.99940012 x = 3.99940012 + -2.99940012 Combine like terms: 3.99940012 + -2.99940012 = 1 x = 1 Simplifying x = 1

Subproblem 2

x + 2.99940012 = -3.99940012 Simplifying x + 2.99940012 = -3.99940012 Reorder the terms: 2.99940012 + x = -3.99940012 Solving 2.99940012 + x = -3.99940012 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.99940012' to each side of the equation. 2.99940012 + -2.99940012 + x = -3.99940012 + -2.99940012 Combine like terms: 2.99940012 + -2.99940012 = 0.00000000 0.00000000 + x = -3.99940012 + -2.99940012 x = -3.99940012 + -2.99940012 Combine like terms: -3.99940012 + -2.99940012 = -6.99880024 x = -6.99880024 Simplifying x = -6.99880024

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1, -6.99880024}

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