5m^2-11m-13=

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Solution for 5m^2-11m-13= equation:


Simplifying
5m2 + -11m + -13 = 0

Reorder the terms:
-13 + -11m + 5m2 = 0

Solving
-13 + -11m + 5m2 = 0

Solving for variable 'm'.

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

Divide each side by '5'.
-2.6 + -2.2m + m2 = 0

Move the constant term to the right:

Add '2.6' to each side of the equation.
-2.6 + -2.2m + 2.6 + m2 = 0 + 2.6

Reorder the terms:
-2.6 + 2.6 + -2.2m + m2 = 0 + 2.6

Combine like terms: -2.6 + 2.6 = 0.0
0.0 + -2.2m + m2 = 0 + 2.6
-2.2m + m2 = 0 + 2.6

Combine like terms: 0 + 2.6 = 2.6
-2.2m + m2 = 2.6

The m term is -2.2m.  Take half its coefficient (-1.1).
Square it (1.21) and add it to both sides.

Add '1.21' to each side of the equation.
-2.2m + 1.21 + m2 = 2.6 + 1.21

Reorder the terms:
1.21 + -2.2m + m2 = 2.6 + 1.21

Combine like terms: 2.6 + 1.21 = 3.81
1.21 + -2.2m + m2 = 3.81

Factor a perfect square on the left side:
(m + -1.1)(m + -1.1) = 3.81

Calculate the square root of the right side: 1.95192213

Break this problem into two subproblems by setting 
(m + -1.1) equal to 1.95192213 and -1.95192213.

Subproblem 1

m + -1.1 = 1.95192213 Simplifying m + -1.1 = 1.95192213 Reorder the terms: -1.1 + m = 1.95192213 Solving -1.1 + m = 1.95192213 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1.1' to each side of the equation. -1.1 + 1.1 + m = 1.95192213 + 1.1 Combine like terms: -1.1 + 1.1 = 0.0 0.0 + m = 1.95192213 + 1.1 m = 1.95192213 + 1.1 Combine like terms: 1.95192213 + 1.1 = 3.05192213 m = 3.05192213 Simplifying m = 3.05192213

Subproblem 2

m + -1.1 = -1.95192213 Simplifying m + -1.1 = -1.95192213 Reorder the terms: -1.1 + m = -1.95192213 Solving -1.1 + m = -1.95192213 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '1.1' to each side of the equation. -1.1 + 1.1 + m = -1.95192213 + 1.1 Combine like terms: -1.1 + 1.1 = 0.0 0.0 + m = -1.95192213 + 1.1 m = -1.95192213 + 1.1 Combine like terms: -1.95192213 + 1.1 = -0.85192213 m = -0.85192213 Simplifying m = -0.85192213

Solution

The solution to the problem is based on the solutions from the subproblems. m = {3.05192213, -0.85192213}

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