2m^2-13m+8=0

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Solution for 2m^2-13m+8=0 equation:


Simplifying
2m2 + -13m + 8 = 0

Reorder the terms:
8 + -13m + 2m2 = 0

Solving
8 + -13m + 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'.
4 + -6.5m + m2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -6.5m + -4 + m2 = 0 + -4

Reorder the terms:
4 + -4 + -6.5m + m2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -6.5m + m2 = 0 + -4
-6.5m + m2 = 0 + -4

Combine like terms: 0 + -4 = -4
-6.5m + m2 = -4

The m term is -6.5m.  Take half its coefficient (-3.25).
Square it (10.5625) and add it to both sides.

Add '10.5625' to each side of the equation.
-6.5m + 10.5625 + m2 = -4 + 10.5625

Reorder the terms:
10.5625 + -6.5m + m2 = -4 + 10.5625

Combine like terms: -4 + 10.5625 = 6.5625
10.5625 + -6.5m + m2 = 6.5625

Factor a perfect square on the left side:
(m + -3.25)(m + -3.25) = 6.5625

Calculate the square root of the right side: 2.561737691

Break this problem into two subproblems by setting 
(m + -3.25) equal to 2.561737691 and -2.561737691.

Subproblem 1

m + -3.25 = 2.561737691 Simplifying m + -3.25 = 2.561737691 Reorder the terms: -3.25 + m = 2.561737691 Solving -3.25 + m = 2.561737691 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3.25' to each side of the equation. -3.25 + 3.25 + m = 2.561737691 + 3.25 Combine like terms: -3.25 + 3.25 = 0.00 0.00 + m = 2.561737691 + 3.25 m = 2.561737691 + 3.25 Combine like terms: 2.561737691 + 3.25 = 5.811737691 m = 5.811737691 Simplifying m = 5.811737691

Subproblem 2

m + -3.25 = -2.561737691 Simplifying m + -3.25 = -2.561737691 Reorder the terms: -3.25 + m = -2.561737691 Solving -3.25 + m = -2.561737691 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3.25' to each side of the equation. -3.25 + 3.25 + m = -2.561737691 + 3.25 Combine like terms: -3.25 + 3.25 = 0.00 0.00 + m = -2.561737691 + 3.25 m = -2.561737691 + 3.25 Combine like terms: -2.561737691 + 3.25 = 0.688262309 m = 0.688262309 Simplifying m = 0.688262309

Solution

The solution to the problem is based on the solutions from the subproblems. m = {5.811737691, 0.688262309}

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