11x^2-37x-4=0

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Solution for 11x^2-37x-4=0 equation:


Simplifying
11x2 + -37x + -4 = 0

Reorder the terms:
-4 + -37x + 11x2 = 0

Solving
-4 + -37x + 11x2 = 0

Solving for variable 'x'.

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

Divide each side by '11'.
-0.3636363636 + -3.363636364x + x2 = 0

Move the constant term to the right:

Add '0.3636363636' to each side of the equation.
-0.3636363636 + -3.363636364x + 0.3636363636 + x2 = 0 + 0.3636363636

Reorder the terms:
-0.3636363636 + 0.3636363636 + -3.363636364x + x2 = 0 + 0.3636363636

Combine like terms: -0.3636363636 + 0.3636363636 = 0.0000000000
0.0000000000 + -3.363636364x + x2 = 0 + 0.3636363636
-3.363636364x + x2 = 0 + 0.3636363636

Combine like terms: 0 + 0.3636363636 = 0.3636363636
-3.363636364x + x2 = 0.3636363636

The x term is -3.363636364x.  Take half its coefficient (-1.681818182).
Square it (2.828512397) and add it to both sides.

Add '2.828512397' to each side of the equation.
-3.363636364x + 2.828512397 + x2 = 0.3636363636 + 2.828512397

Reorder the terms:
2.828512397 + -3.363636364x + x2 = 0.3636363636 + 2.828512397

Combine like terms: 0.3636363636 + 2.828512397 = 3.1921487606
2.828512397 + -3.363636364x + x2 = 3.1921487606

Factor a perfect square on the left side:
(x + -1.681818182)(x + -1.681818182) = 3.1921487606

Calculate the square root of the right side: 1.786658546

Break this problem into two subproblems by setting 
(x + -1.681818182) equal to 1.786658546 and -1.786658546.

Subproblem 1

x + -1.681818182 = 1.786658546 Simplifying x + -1.681818182 = 1.786658546 Reorder the terms: -1.681818182 + x = 1.786658546 Solving -1.681818182 + x = 1.786658546 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.681818182' to each side of the equation. -1.681818182 + 1.681818182 + x = 1.786658546 + 1.681818182 Combine like terms: -1.681818182 + 1.681818182 = 0.000000000 0.000000000 + x = 1.786658546 + 1.681818182 x = 1.786658546 + 1.681818182 Combine like terms: 1.786658546 + 1.681818182 = 3.468476728 x = 3.468476728 Simplifying x = 3.468476728

Subproblem 2

x + -1.681818182 = -1.786658546 Simplifying x + -1.681818182 = -1.786658546 Reorder the terms: -1.681818182 + x = -1.786658546 Solving -1.681818182 + x = -1.786658546 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.681818182' to each side of the equation. -1.681818182 + 1.681818182 + x = -1.786658546 + 1.681818182 Combine like terms: -1.681818182 + 1.681818182 = 0.000000000 0.000000000 + x = -1.786658546 + 1.681818182 x = -1.786658546 + 1.681818182 Combine like terms: -1.786658546 + 1.681818182 = -0.104840364 x = -0.104840364 Simplifying x = -0.104840364

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.468476728, -0.104840364}

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