(2m^2+6m)+(m^2+5m+7)=

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Solution for (2m^2+6m)+(m^2+5m+7)= equation:


Simplifying
(2m2 + 6m) + (m2 + 5m + 7) = 0

Reorder the terms:
(6m + 2m2) + (m2 + 5m + 7) = 0

Remove parenthesis around (6m + 2m2)
6m + 2m2 + (m2 + 5m + 7) = 0

Reorder the terms:
6m + 2m2 + (7 + 5m + m2) = 0

Remove parenthesis around (7 + 5m + m2)
6m + 2m2 + 7 + 5m + m2 = 0

Reorder the terms:
7 + 6m + 5m + 2m2 + m2 = 0

Combine like terms: 6m + 5m = 11m
7 + 11m + 2m2 + m2 = 0

Combine like terms: 2m2 + m2 = 3m2
7 + 11m + 3m2 = 0

Solving
7 + 11m + 3m2 = 0

Solving for variable 'm'.

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

Divide each side by '3'.
2.333333333 + 3.666666667m + m2 = 0

Move the constant term to the right:

Add '-2.333333333' to each side of the equation.
2.333333333 + 3.666666667m + -2.333333333 + m2 = 0 + -2.333333333

Reorder the terms:
2.333333333 + -2.333333333 + 3.666666667m + m2 = 0 + -2.333333333

Combine like terms: 2.333333333 + -2.333333333 = 0.000000000
0.000000000 + 3.666666667m + m2 = 0 + -2.333333333
3.666666667m + m2 = 0 + -2.333333333

Combine like terms: 0 + -2.333333333 = -2.333333333
3.666666667m + m2 = -2.333333333

The m term is 3.666666667m.  Take half its coefficient (1.833333334).
Square it (3.361111114) and add it to both sides.

Add '3.361111114' to each side of the equation.
3.666666667m + 3.361111114 + m2 = -2.333333333 + 3.361111114

Reorder the terms:
3.361111114 + 3.666666667m + m2 = -2.333333333 + 3.361111114

Combine like terms: -2.333333333 + 3.361111114 = 1.027777781
3.361111114 + 3.666666667m + m2 = 1.027777781

Factor a perfect square on the left side:
(m + 1.833333334)(m + 1.833333334) = 1.027777781

Calculate the square root of the right side: 1.013793757

Break this problem into two subproblems by setting 
(m + 1.833333334) equal to 1.013793757 and -1.013793757.

Subproblem 1

m + 1.833333334 = 1.013793757 Simplifying m + 1.833333334 = 1.013793757 Reorder the terms: 1.833333334 + m = 1.013793757 Solving 1.833333334 + m = 1.013793757 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.833333334' to each side of the equation. 1.833333334 + -1.833333334 + m = 1.013793757 + -1.833333334 Combine like terms: 1.833333334 + -1.833333334 = 0.000000000 0.000000000 + m = 1.013793757 + -1.833333334 m = 1.013793757 + -1.833333334 Combine like terms: 1.013793757 + -1.833333334 = -0.819539577 m = -0.819539577 Simplifying m = -0.819539577

Subproblem 2

m + 1.833333334 = -1.013793757 Simplifying m + 1.833333334 = -1.013793757 Reorder the terms: 1.833333334 + m = -1.013793757 Solving 1.833333334 + m = -1.013793757 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-1.833333334' to each side of the equation. 1.833333334 + -1.833333334 + m = -1.013793757 + -1.833333334 Combine like terms: 1.833333334 + -1.833333334 = 0.000000000 0.000000000 + m = -1.013793757 + -1.833333334 m = -1.013793757 + -1.833333334 Combine like terms: -1.013793757 + -1.833333334 = -2.847127091 m = -2.847127091 Simplifying m = -2.847127091

Solution

The solution to the problem is based on the solutions from the subproblems. m = {-0.819539577, -2.847127091}

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