11x^2-10x-6=0

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Solution for 11x^2-10x-6=0 equation:


Simplifying
11x2 + -10x + -6 = 0

Reorder the terms:
-6 + -10x + 11x2 = 0

Solving
-6 + -10x + 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'.
-0.5454545455 + -0.9090909091x + x2 = 0

Move the constant term to the right:

Add '0.5454545455' to each side of the equation.
-0.5454545455 + -0.9090909091x + 0.5454545455 + x2 = 0 + 0.5454545455

Reorder the terms:
-0.5454545455 + 0.5454545455 + -0.9090909091x + x2 = 0 + 0.5454545455

Combine like terms: -0.5454545455 + 0.5454545455 = 0.0000000000
0.0000000000 + -0.9090909091x + x2 = 0 + 0.5454545455
-0.9090909091x + x2 = 0 + 0.5454545455

Combine like terms: 0 + 0.5454545455 = 0.5454545455
-0.9090909091x + x2 = 0.5454545455

The x term is -0.9090909091x.  Take half its coefficient (-0.4545454546).
Square it (0.2066115703) and add it to both sides.

Add '0.2066115703' to each side of the equation.
-0.9090909091x + 0.2066115703 + x2 = 0.5454545455 + 0.2066115703

Reorder the terms:
0.2066115703 + -0.9090909091x + x2 = 0.5454545455 + 0.2066115703

Combine like terms: 0.5454545455 + 0.2066115703 = 0.7520661158
0.2066115703 + -0.9090909091x + x2 = 0.7520661158

Factor a perfect square on the left side:
(x + -0.4545454546)(x + -0.4545454546) = 0.7520661158

Calculate the square root of the right side: 0.867217456

Break this problem into two subproblems by setting 
(x + -0.4545454546) equal to 0.867217456 and -0.867217456.

Subproblem 1

x + -0.4545454546 = 0.867217456 Simplifying x + -0.4545454546 = 0.867217456 Reorder the terms: -0.4545454546 + x = 0.867217456 Solving -0.4545454546 + x = 0.867217456 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4545454546' to each side of the equation. -0.4545454546 + 0.4545454546 + x = 0.867217456 + 0.4545454546 Combine like terms: -0.4545454546 + 0.4545454546 = 0.0000000000 0.0000000000 + x = 0.867217456 + 0.4545454546 x = 0.867217456 + 0.4545454546 Combine like terms: 0.867217456 + 0.4545454546 = 1.3217629106 x = 1.3217629106 Simplifying x = 1.3217629106

Subproblem 2

x + -0.4545454546 = -0.867217456 Simplifying x + -0.4545454546 = -0.867217456 Reorder the terms: -0.4545454546 + x = -0.867217456 Solving -0.4545454546 + x = -0.867217456 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4545454546' to each side of the equation. -0.4545454546 + 0.4545454546 + x = -0.867217456 + 0.4545454546 Combine like terms: -0.4545454546 + 0.4545454546 = 0.0000000000 0.0000000000 + x = -0.867217456 + 0.4545454546 x = -0.867217456 + 0.4545454546 Combine like terms: -0.867217456 + 0.4545454546 = -0.4126720014 x = -0.4126720014 Simplifying x = -0.4126720014

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.3217629106, -0.4126720014}

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