11x^2-7x-10=0

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Solution for 11x^2-7x-10=0 equation:


Simplifying
11x2 + -7x + -10 = 0

Reorder the terms:
-10 + -7x + 11x2 = 0

Solving
-10 + -7x + 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 + -0.6363636364x + x2 = 0

Move the constant term to the right:

Add '0.9090909091' to each side of the equation.
-0.9090909091 + -0.6363636364x + 0.9090909091 + x2 = 0 + 0.9090909091

Reorder the terms:
-0.9090909091 + 0.9090909091 + -0.6363636364x + x2 = 0 + 0.9090909091

Combine like terms: -0.9090909091 + 0.9090909091 = 0.0000000000
0.0000000000 + -0.6363636364x + x2 = 0 + 0.9090909091
-0.6363636364x + x2 = 0 + 0.9090909091

Combine like terms: 0 + 0.9090909091 = 0.9090909091
-0.6363636364x + x2 = 0.9090909091

The x term is -0.6363636364x.  Take half its coefficient (-0.3181818182).
Square it (0.1012396694) and add it to both sides.

Add '0.1012396694' to each side of the equation.
-0.6363636364x + 0.1012396694 + x2 = 0.9090909091 + 0.1012396694

Reorder the terms:
0.1012396694 + -0.6363636364x + x2 = 0.9090909091 + 0.1012396694

Combine like terms: 0.9090909091 + 0.1012396694 = 1.0103305785
0.1012396694 + -0.6363636364x + x2 = 1.0103305785

Factor a perfect square on the left side:
(x + -0.3181818182)(x + -0.3181818182) = 1.0103305785

Calculate the square root of the right side: 1.005152018

Break this problem into two subproblems by setting 
(x + -0.3181818182) equal to 1.005152018 and -1.005152018.

Subproblem 1

x + -0.3181818182 = 1.005152018 Simplifying x + -0.3181818182 = 1.005152018 Reorder the terms: -0.3181818182 + x = 1.005152018 Solving -0.3181818182 + x = 1.005152018 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3181818182' to each side of the equation. -0.3181818182 + 0.3181818182 + x = 1.005152018 + 0.3181818182 Combine like terms: -0.3181818182 + 0.3181818182 = 0.0000000000 0.0000000000 + x = 1.005152018 + 0.3181818182 x = 1.005152018 + 0.3181818182 Combine like terms: 1.005152018 + 0.3181818182 = 1.3233338362 x = 1.3233338362 Simplifying x = 1.3233338362

Subproblem 2

x + -0.3181818182 = -1.005152018 Simplifying x + -0.3181818182 = -1.005152018 Reorder the terms: -0.3181818182 + x = -1.005152018 Solving -0.3181818182 + x = -1.005152018 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.3181818182' to each side of the equation. -0.3181818182 + 0.3181818182 + x = -1.005152018 + 0.3181818182 Combine like terms: -0.3181818182 + 0.3181818182 = 0.0000000000 0.0000000000 + x = -1.005152018 + 0.3181818182 x = -1.005152018 + 0.3181818182 Combine like terms: -1.005152018 + 0.3181818182 = -0.6869701998 x = -0.6869701998 Simplifying x = -0.6869701998

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.3233338362, -0.6869701998}

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