2x^2+37x=1

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Solution for 2x^2+37x=1 equation:


Simplifying
2x2 + 37x = 1

Reorder the terms:
37x + 2x2 = 1

Solving
37x + 2x2 = 1

Solving for variable 'x'.

Reorder the terms:
-1 + 37x + 2x2 = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + 37x + 2x2 = 0

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

Divide each side by '2'.
-0.5 + 18.5x + x2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + 18.5x + 0.5 + x2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + 18.5x + x2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + 18.5x + x2 = 0 + 0.5
18.5x + x2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
18.5x + x2 = 0.5

The x term is 18.5x.  Take half its coefficient (9.25).
Square it (85.5625) and add it to both sides.

Add '85.5625' to each side of the equation.
18.5x + 85.5625 + x2 = 0.5 + 85.5625

Reorder the terms:
85.5625 + 18.5x + x2 = 0.5 + 85.5625

Combine like terms: 0.5 + 85.5625 = 86.0625
85.5625 + 18.5x + x2 = 86.0625

Factor a perfect square on the left side:
(x + 9.25)(x + 9.25) = 86.0625

Calculate the square root of the right side: 9.276987658

Break this problem into two subproblems by setting 
(x + 9.25) equal to 9.276987658 and -9.276987658.

Subproblem 1

x + 9.25 = 9.276987658 Simplifying x + 9.25 = 9.276987658 Reorder the terms: 9.25 + x = 9.276987658 Solving 9.25 + x = 9.276987658 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.25' to each side of the equation. 9.25 + -9.25 + x = 9.276987658 + -9.25 Combine like terms: 9.25 + -9.25 = 0.00 0.00 + x = 9.276987658 + -9.25 x = 9.276987658 + -9.25 Combine like terms: 9.276987658 + -9.25 = 0.026987658 x = 0.026987658 Simplifying x = 0.026987658

Subproblem 2

x + 9.25 = -9.276987658 Simplifying x + 9.25 = -9.276987658 Reorder the terms: 9.25 + x = -9.276987658 Solving 9.25 + x = -9.276987658 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.25' to each side of the equation. 9.25 + -9.25 + x = -9.276987658 + -9.25 Combine like terms: 9.25 + -9.25 = 0.00 0.00 + x = -9.276987658 + -9.25 x = -9.276987658 + -9.25 Combine like terms: -9.276987658 + -9.25 = -18.526987658 x = -18.526987658 Simplifying x = -18.526987658

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.026987658, -18.526987658}

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