11m^2-11m-1=9m

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Solution for 11m^2-11m-1=9m equation:


Simplifying
11m2 + -11m + -1 = 9m

Reorder the terms:
-1 + -11m + 11m2 = 9m

Solving
-1 + -11m + 11m2 = 9m

Solving for variable 'm'.

Reorder the terms:
-1 + -11m + -9m + 11m2 = 9m + -9m

Combine like terms: -11m + -9m = -20m
-1 + -20m + 11m2 = 9m + -9m

Combine like terms: 9m + -9m = 0
-1 + -20m + 11m2 = 0

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

Divide each side by '11'.
-0.09090909091 + -1.818181818m + m2 = 0

Move the constant term to the right:

Add '0.09090909091' to each side of the equation.
-0.09090909091 + -1.818181818m + 0.09090909091 + m2 = 0 + 0.09090909091

Reorder the terms:
-0.09090909091 + 0.09090909091 + -1.818181818m + m2 = 0 + 0.09090909091

Combine like terms: -0.09090909091 + 0.09090909091 = 0.00000000000
0.00000000000 + -1.818181818m + m2 = 0 + 0.09090909091
-1.818181818m + m2 = 0 + 0.09090909091

Combine like terms: 0 + 0.09090909091 = 0.09090909091
-1.818181818m + m2 = 0.09090909091

The m term is -1.818181818m.  Take half its coefficient (-0.909090909).
Square it (0.8264462808) and add it to both sides.

Add '0.8264462808' to each side of the equation.
-1.818181818m + 0.8264462808 + m2 = 0.09090909091 + 0.8264462808

Reorder the terms:
0.8264462808 + -1.818181818m + m2 = 0.09090909091 + 0.8264462808

Combine like terms: 0.09090909091 + 0.8264462808 = 0.91735537171
0.8264462808 + -1.818181818m + m2 = 0.91735537171

Factor a perfect square on the left side:
(m + -0.909090909)(m + -0.909090909) = 0.91735537171

Calculate the square root of the right side: 0.957786705

Break this problem into two subproblems by setting 
(m + -0.909090909) equal to 0.957786705 and -0.957786705.

Subproblem 1

m + -0.909090909 = 0.957786705 Simplifying m + -0.909090909 = 0.957786705 Reorder the terms: -0.909090909 + m = 0.957786705 Solving -0.909090909 + m = 0.957786705 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.909090909' to each side of the equation. -0.909090909 + 0.909090909 + m = 0.957786705 + 0.909090909 Combine like terms: -0.909090909 + 0.909090909 = 0.000000000 0.000000000 + m = 0.957786705 + 0.909090909 m = 0.957786705 + 0.909090909 Combine like terms: 0.957786705 + 0.909090909 = 1.866877614 m = 1.866877614 Simplifying m = 1.866877614

Subproblem 2

m + -0.909090909 = -0.957786705 Simplifying m + -0.909090909 = -0.957786705 Reorder the terms: -0.909090909 + m = -0.957786705 Solving -0.909090909 + m = -0.957786705 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '0.909090909' to each side of the equation. -0.909090909 + 0.909090909 + m = -0.957786705 + 0.909090909 Combine like terms: -0.909090909 + 0.909090909 = 0.000000000 0.000000000 + m = -0.957786705 + 0.909090909 m = -0.957786705 + 0.909090909 Combine like terms: -0.957786705 + 0.909090909 = -0.048695796 m = -0.048695796 Simplifying m = -0.048695796

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.866877614, -0.048695796}

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