2x^2-39x-37=0

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Solution for 2x^2-39x-37=0 equation:


Simplifying
2x2 + -39x + -37 = 0

Reorder the terms:
-37 + -39x + 2x2 = 0

Solving
-37 + -39x + 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 + -19.5x + x2 = 0

Move the constant term to the right:

Add '18.5' to each side of the equation.
-18.5 + -19.5x + 18.5 + x2 = 0 + 18.5

Reorder the terms:
-18.5 + 18.5 + -19.5x + x2 = 0 + 18.5

Combine like terms: -18.5 + 18.5 = 0.0
0.0 + -19.5x + x2 = 0 + 18.5
-19.5x + x2 = 0 + 18.5

Combine like terms: 0 + 18.5 = 18.5
-19.5x + x2 = 18.5

The x term is -19.5x.  Take half its coefficient (-9.75).
Square it (95.0625) and add it to both sides.

Add '95.0625' to each side of the equation.
-19.5x + 95.0625 + x2 = 18.5 + 95.0625

Reorder the terms:
95.0625 + -19.5x + x2 = 18.5 + 95.0625

Combine like terms: 18.5 + 95.0625 = 113.5625
95.0625 + -19.5x + x2 = 113.5625

Factor a perfect square on the left side:
(x + -9.75)(x + -9.75) = 113.5625

Calculate the square root of the right side: 10.656570743

Break this problem into two subproblems by setting 
(x + -9.75) equal to 10.656570743 and -10.656570743.

Subproblem 1

x + -9.75 = 10.656570743 Simplifying x + -9.75 = 10.656570743 Reorder the terms: -9.75 + x = 10.656570743 Solving -9.75 + x = 10.656570743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.75' to each side of the equation. -9.75 + 9.75 + x = 10.656570743 + 9.75 Combine like terms: -9.75 + 9.75 = 0.00 0.00 + x = 10.656570743 + 9.75 x = 10.656570743 + 9.75 Combine like terms: 10.656570743 + 9.75 = 20.406570743 x = 20.406570743 Simplifying x = 20.406570743

Subproblem 2

x + -9.75 = -10.656570743 Simplifying x + -9.75 = -10.656570743 Reorder the terms: -9.75 + x = -10.656570743 Solving -9.75 + x = -10.656570743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.75' to each side of the equation. -9.75 + 9.75 + x = -10.656570743 + 9.75 Combine like terms: -9.75 + 9.75 = 0.00 0.00 + x = -10.656570743 + 9.75 x = -10.656570743 + 9.75 Combine like terms: -10.656570743 + 9.75 = -0.906570743 x = -0.906570743 Simplifying x = -0.906570743

Solution

The solution to the problem is based on the solutions from the subproblems. x = {20.406570743, -0.906570743}

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