(11x^2)-(15x)-52=0

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Solution for (11x^2)-(15x)-52=0 equation:


Simplifying
(11x2) + -1(15x) + -52 = 0

Remove parenthesis around (15x)
(11x2) + -1 * 15x + -52 = 0

Multiply -1 * 15
(11x2) + -15x + -52 = 0

Reorder the terms:
-52 + -15x + (11x2) = 0

Solving
-52 + -15x + (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'.
-4.727272727 + -1.363636364x + x2 = 0

Move the constant term to the right:

Add '4.727272727' to each side of the equation.
-4.727272727 + -1.363636364x + 4.727272727 + x2 = 0 + 4.727272727

Reorder the terms:
-4.727272727 + 4.727272727 + -1.363636364x + x2 = 0 + 4.727272727

Combine like terms: -4.727272727 + 4.727272727 = 0.000000000
0.000000000 + -1.363636364x + x2 = 0 + 4.727272727
-1.363636364x + x2 = 0 + 4.727272727

Combine like terms: 0 + 4.727272727 = 4.727272727
-1.363636364x + x2 = 4.727272727

The x term is -1.363636364x.  Take half its coefficient (-0.681818182).
Square it (0.4648760333) and add it to both sides.

Add '0.4648760333' to each side of the equation.
-1.363636364x + 0.4648760333 + x2 = 4.727272727 + 0.4648760333

Reorder the terms:
0.4648760333 + -1.363636364x + x2 = 4.727272727 + 0.4648760333

Combine like terms: 4.727272727 + 0.4648760333 = 5.1921487603
0.4648760333 + -1.363636364x + x2 = 5.1921487603

Factor a perfect square on the left side:
((x) + -0.681818182)((x) + -0.681818182) = 5.1921487603

Calculate the square root of the right side: 2.278628702

Break this problem into two subproblems by setting 
((x) + -0.681818182) equal to 2.278628702 and -2.278628702.

Subproblem 1

(x) + -0.681818182 = 2.278628702 Simplifying (x) + -0.681818182 = 2.278628702 x + -0.681818182 = 2.278628702 Reorder the terms: -0.681818182 + x = 2.278628702 Solving -0.681818182 + x = 2.278628702 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.681818182' to each side of the equation. -0.681818182 + 0.681818182 + x = 2.278628702 + 0.681818182 Combine like terms: -0.681818182 + 0.681818182 = 0.000000000 0.000000000 + x = 2.278628702 + 0.681818182 x = 2.278628702 + 0.681818182 Combine like terms: 2.278628702 + 0.681818182 = 2.960446884 x = 2.960446884 Simplifying x = 2.960446884

Subproblem 2

(x) + -0.681818182 = -2.278628702 Simplifying (x) + -0.681818182 = -2.278628702 x + -0.681818182 = -2.278628702 Reorder the terms: -0.681818182 + x = -2.278628702 Solving -0.681818182 + x = -2.278628702 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.681818182' to each side of the equation. -0.681818182 + 0.681818182 + x = -2.278628702 + 0.681818182 Combine like terms: -0.681818182 + 0.681818182 = 0.000000000 0.000000000 + x = -2.278628702 + 0.681818182 x = -2.278628702 + 0.681818182 Combine like terms: -2.278628702 + 0.681818182 = -1.59681052 x = -1.59681052 Simplifying x = -1.59681052

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.960446884, -1.59681052}

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