(2m^2)-11m-5=0

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Solution for (2m^2)-11m-5=0 equation:


Simplifying
(2m2) + -11m + -5 = 0

Reorder the terms:
-5 + -11m + (2m2) = 0

Solving
-5 + -11m + (2m2) = 0

Solving for variable 'm'.

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

Divide each side by '2'.
-2.5 + -5.5m + m2 = 0

Move the constant term to the right:

Add '2.5' to each side of the equation.
-2.5 + -5.5m + 2.5 + m2 = 0 + 2.5

Reorder the terms:
-2.5 + 2.5 + -5.5m + m2 = 0 + 2.5

Combine like terms: -2.5 + 2.5 = 0.0
0.0 + -5.5m + m2 = 0 + 2.5
-5.5m + m2 = 0 + 2.5

Combine like terms: 0 + 2.5 = 2.5
-5.5m + m2 = 2.5

The m term is -5.5m.  Take half its coefficient (-2.75).
Square it (7.5625) and add it to both sides.

Add '7.5625' to each side of the equation.
-5.5m + 7.5625 + m2 = 2.5 + 7.5625

Reorder the terms:
7.5625 + -5.5m + m2 = 2.5 + 7.5625

Combine like terms: 2.5 + 7.5625 = 10.0625
7.5625 + -5.5m + m2 = 10.0625

Factor a perfect square on the left side:
((m) + -2.75)((m) + -2.75) = 10.0625

Calculate the square root of the right side: 3.172144385

Break this problem into two subproblems by setting 
((m) + -2.75) equal to 3.172144385 and -3.172144385.

Subproblem 1

(m) + -2.75 = 3.172144385 Simplifying (m) + -2.75 = 3.172144385 m + -2.75 = 3.172144385 Reorder the terms: -2.75 + m = 3.172144385 Solving -2.75 + m = 3.172144385 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + m = 3.172144385 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + m = 3.172144385 + 2.75 m = 3.172144385 + 2.75 Combine like terms: 3.172144385 + 2.75 = 5.922144385 m = 5.922144385 Simplifying m = 5.922144385

Subproblem 2

(m) + -2.75 = -3.172144385 Simplifying (m) + -2.75 = -3.172144385 m + -2.75 = -3.172144385 Reorder the terms: -2.75 + m = -3.172144385 Solving -2.75 + m = -3.172144385 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + m = -3.172144385 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + m = -3.172144385 + 2.75 m = -3.172144385 + 2.75 Combine like terms: -3.172144385 + 2.75 = -0.422144385 m = -0.422144385 Simplifying m = -0.422144385

Solution

The solution to the problem is based on the solutions from the subproblems. m = {5.922144385, -0.422144385}

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