11x^2-12x-10=0

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Solution for 11x^2-12x-10=0 equation:


Simplifying
11x2 + -12x + -10 = 0

Reorder the terms:
-10 + -12x + 11x2 = 0

Solving
-10 + -12x + 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'.
-0.9090909091 + -1.090909091x + x2 = 0

Move the constant term to the right:

Add '0.9090909091' to each side of the equation.
-0.9090909091 + -1.090909091x + 0.9090909091 + x2 = 0 + 0.9090909091

Reorder the terms:
-0.9090909091 + 0.9090909091 + -1.090909091x + x2 = 0 + 0.9090909091

Combine like terms: -0.9090909091 + 0.9090909091 = 0.0000000000
0.0000000000 + -1.090909091x + x2 = 0 + 0.9090909091
-1.090909091x + x2 = 0 + 0.9090909091

Combine like terms: 0 + 0.9090909091 = 0.9090909091
-1.090909091x + x2 = 0.9090909091

The x term is -1.090909091x.  Take half its coefficient (-0.5454545455).
Square it (0.2975206612) and add it to both sides.

Add '0.2975206612' to each side of the equation.
-1.090909091x + 0.2975206612 + x2 = 0.9090909091 + 0.2975206612

Reorder the terms:
0.2975206612 + -1.090909091x + x2 = 0.9090909091 + 0.2975206612

Combine like terms: 0.9090909091 + 0.2975206612 = 1.2066115703
0.2975206612 + -1.090909091x + x2 = 1.2066115703

Factor a perfect square on the left side:
(x + -0.5454545455)(x + -0.5454545455) = 1.2066115703

Calculate the square root of the right side: 1.098458725

Break this problem into two subproblems by setting 
(x + -0.5454545455) equal to 1.098458725 and -1.098458725.

Subproblem 1

x + -0.5454545455 = 1.098458725 Simplifying x + -0.5454545455 = 1.098458725 Reorder the terms: -0.5454545455 + x = 1.098458725 Solving -0.5454545455 + x = 1.098458725 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5454545455' to each side of the equation. -0.5454545455 + 0.5454545455 + x = 1.098458725 + 0.5454545455 Combine like terms: -0.5454545455 + 0.5454545455 = 0.0000000000 0.0000000000 + x = 1.098458725 + 0.5454545455 x = 1.098458725 + 0.5454545455 Combine like terms: 1.098458725 + 0.5454545455 = 1.6439132705 x = 1.6439132705 Simplifying x = 1.6439132705

Subproblem 2

x + -0.5454545455 = -1.098458725 Simplifying x + -0.5454545455 = -1.098458725 Reorder the terms: -0.5454545455 + x = -1.098458725 Solving -0.5454545455 + x = -1.098458725 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5454545455' to each side of the equation. -0.5454545455 + 0.5454545455 + x = -1.098458725 + 0.5454545455 Combine like terms: -0.5454545455 + 0.5454545455 = 0.0000000000 0.0000000000 + x = -1.098458725 + 0.5454545455 x = -1.098458725 + 0.5454545455 Combine like terms: -1.098458725 + 0.5454545455 = -0.5530041795 x = -0.5530041795 Simplifying x = -0.5530041795

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.6439132705, -0.5530041795}

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