5m^2+5m-13=0

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Solution for 5m^2+5m-13=0 equation:


Simplifying
5m2 + 5m + -13 = 0

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

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

Move the constant term to the right:

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

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

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

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

The m term is m.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
 + 0.25 + m2 = 2.6 + 0.25

Combine like terms:  + 0.25 = 1.25
1.25 + m2 = 2.6 + 0.25

Combine like terms: 2.6 + 0.25 = 2.85
1.25 + m2 = 2.85

Factor a perfect square on the left side:
(m + 0.5)(m + 0.5) = 2.85

Calculate the square root of the right side: 1.688194302

Break this problem into two subproblems by setting 
(m + 0.5) equal to 1.688194302 and -1.688194302.

Subproblem 1

m + 0.5 = 1.688194302 Simplifying m + 0.5 = 1.688194302 Reorder the terms: 0.5 + m = 1.688194302 Solving 0.5 + m = 1.688194302 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + m = 1.688194302 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + m = 1.688194302 + -0.5 m = 1.688194302 + -0.5 Combine like terms: 1.688194302 + -0.5 = 1.188194302 m = 1.188194302 Simplifying m = 1.188194302

Subproblem 2

m + 0.5 = -1.688194302 Simplifying m + 0.5 = -1.688194302 Reorder the terms: 0.5 + m = -1.688194302 Solving 0.5 + m = -1.688194302 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + m = -1.688194302 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + m = -1.688194302 + -0.5 m = -1.688194302 + -0.5 Combine like terms: -1.688194302 + -0.5 = -2.188194302 m = -2.188194302 Simplifying m = -2.188194302

Solution

The solution to the problem is based on the solutions from the subproblems. m = {1.188194302, -2.188194302}

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