m(4+m)+2(5m+6)=

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Solution for m(4+m)+2(5m+6)= equation:


Simplifying
m(4 + m) + 2(5m + 6) = 0
(4 * m + m * m) + 2(5m + 6) = 0
(4m + m2) + 2(5m + 6) = 0

Reorder the terms:
4m + m2 + 2(6 + 5m) = 0
4m + m2 + (6 * 2 + 5m * 2) = 0
4m + m2 + (12 + 10m) = 0

Reorder the terms:
12 + 4m + 10m + m2 = 0

Combine like terms: 4m + 10m = 14m
12 + 14m + m2 = 0

Solving
12 + 14m + m2 = 0

Solving for variable 'm'.

Begin completing the square.

Move the constant term to the right:

Add '-12' to each side of the equation.
12 + 14m + -12 + m2 = 0 + -12

Reorder the terms:
12 + -12 + 14m + m2 = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 14m + m2 = 0 + -12
14m + m2 = 0 + -12

Combine like terms: 0 + -12 = -12
14m + m2 = -12

The m term is 14m.  Take half its coefficient (7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
14m + 49 + m2 = -12 + 49

Reorder the terms:
49 + 14m + m2 = -12 + 49

Combine like terms: -12 + 49 = 37
49 + 14m + m2 = 37

Factor a perfect square on the left side:
(m + 7)(m + 7) = 37

Calculate the square root of the right side: 6.08276253

Break this problem into two subproblems by setting 
(m + 7) equal to 6.08276253 and -6.08276253.

Subproblem 1

m + 7 = 6.08276253 Simplifying m + 7 = 6.08276253 Reorder the terms: 7 + m = 6.08276253 Solving 7 + m = 6.08276253 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + m = 6.08276253 + -7 Combine like terms: 7 + -7 = 0 0 + m = 6.08276253 + -7 m = 6.08276253 + -7 Combine like terms: 6.08276253 + -7 = -0.91723747 m = -0.91723747 Simplifying m = -0.91723747

Subproblem 2

m + 7 = -6.08276253 Simplifying m + 7 = -6.08276253 Reorder the terms: 7 + m = -6.08276253 Solving 7 + m = -6.08276253 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + m = -6.08276253 + -7 Combine like terms: 7 + -7 = 0 0 + m = -6.08276253 + -7 m = -6.08276253 + -7 Combine like terms: -6.08276253 + -7 = -13.08276253 m = -13.08276253 Simplifying m = -13.08276253

Solution

The solution to the problem is based on the solutions from the subproblems. m = {-0.91723747, -13.08276253}

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