-2x^2-12x+37=0

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Solution for -2x^2-12x+37=0 equation:


Simplifying
-2x2 + -12x + 37 = 0

Reorder the terms:
37 + -12x + -2x2 = 0

Solving
37 + -12x + -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'.
-18.5 + 6x + x2 = 0

Move the constant term to the right:

Add '18.5' to each side of the equation.
-18.5 + 6x + 18.5 + x2 = 0 + 18.5

Reorder the terms:
-18.5 + 18.5 + 6x + x2 = 0 + 18.5

Combine like terms: -18.5 + 18.5 = 0.0
0.0 + 6x + x2 = 0 + 18.5
6x + x2 = 0 + 18.5

Combine like terms: 0 + 18.5 = 18.5
6x + x2 = 18.5

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 18.5 + 9

Reorder the terms:
9 + 6x + x2 = 18.5 + 9

Combine like terms: 18.5 + 9 = 27.5
9 + 6x + x2 = 27.5

Factor a perfect square on the left side:
(x + 3)(x + 3) = 27.5

Calculate the square root of the right side: 5.244044241

Break this problem into two subproblems by setting 
(x + 3) equal to 5.244044241 and -5.244044241.

Subproblem 1

x + 3 = 5.244044241 Simplifying x + 3 = 5.244044241 Reorder the terms: 3 + x = 5.244044241 Solving 3 + x = 5.244044241 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 5.244044241 + -3 Combine like terms: 3 + -3 = 0 0 + x = 5.244044241 + -3 x = 5.244044241 + -3 Combine like terms: 5.244044241 + -3 = 2.244044241 x = 2.244044241 Simplifying x = 2.244044241

Subproblem 2

x + 3 = -5.244044241 Simplifying x + 3 = -5.244044241 Reorder the terms: 3 + x = -5.244044241 Solving 3 + x = -5.244044241 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -5.244044241 + -3 Combine like terms: 3 + -3 = 0 0 + x = -5.244044241 + -3 x = -5.244044241 + -3 Combine like terms: -5.244044241 + -3 = -8.244044241 x = -8.244044241 Simplifying x = -8.244044241

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.244044241, -8.244044241}

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