2m^2-15m-26=

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Solution for 2m^2-15m-26= equation:


Simplifying
2m2 + -15m + -26 = 0

Reorder the terms:
-26 + -15m + 2m2 = 0

Solving
-26 + -15m + 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'.
-13 + -7.5m + m2 = 0

Move the constant term to the right:

Add '13' to each side of the equation.
-13 + -7.5m + 13 + m2 = 0 + 13

Reorder the terms:
-13 + 13 + -7.5m + m2 = 0 + 13

Combine like terms: -13 + 13 = 0
0 + -7.5m + m2 = 0 + 13
-7.5m + m2 = 0 + 13

Combine like terms: 0 + 13 = 13
-7.5m + m2 = 13

The m term is -7.5m.  Take half its coefficient (-3.75).
Square it (14.0625) and add it to both sides.

Add '14.0625' to each side of the equation.
-7.5m + 14.0625 + m2 = 13 + 14.0625

Reorder the terms:
14.0625 + -7.5m + m2 = 13 + 14.0625

Combine like terms: 13 + 14.0625 = 27.0625
14.0625 + -7.5m + m2 = 27.0625

Factor a perfect square on the left side:
(m + -3.75)(m + -3.75) = 27.0625

Calculate the square root of the right side: 5.202163012

Break this problem into two subproblems by setting 
(m + -3.75) equal to 5.202163012 and -5.202163012.

Subproblem 1

m + -3.75 = 5.202163012 Simplifying m + -3.75 = 5.202163012 Reorder the terms: -3.75 + m = 5.202163012 Solving -3.75 + m = 5.202163012 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3.75' to each side of the equation. -3.75 + 3.75 + m = 5.202163012 + 3.75 Combine like terms: -3.75 + 3.75 = 0.00 0.00 + m = 5.202163012 + 3.75 m = 5.202163012 + 3.75 Combine like terms: 5.202163012 + 3.75 = 8.952163012 m = 8.952163012 Simplifying m = 8.952163012

Subproblem 2

m + -3.75 = -5.202163012 Simplifying m + -3.75 = -5.202163012 Reorder the terms: -3.75 + m = -5.202163012 Solving -3.75 + m = -5.202163012 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3.75' to each side of the equation. -3.75 + 3.75 + m = -5.202163012 + 3.75 Combine like terms: -3.75 + 3.75 = 0.00 0.00 + m = -5.202163012 + 3.75 m = -5.202163012 + 3.75 Combine like terms: -5.202163012 + 3.75 = -1.452163012 m = -1.452163012 Simplifying m = -1.452163012

Solution

The solution to the problem is based on the solutions from the subproblems. m = {8.952163012, -1.452163012}

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