m^2+16m=-49

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Solution for m^2+16m=-49 equation:


Simplifying
m2 + 16m = -49

Reorder the terms:
16m + m2 = -49

Solving
16m + m2 = -49

Solving for variable 'm'.

Reorder the terms:
49 + 16m + m2 = -49 + 49

Combine like terms: -49 + 49 = 0
49 + 16m + m2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-49' to each side of the equation.
49 + 16m + -49 + m2 = 0 + -49

Reorder the terms:
49 + -49 + 16m + m2 = 0 + -49

Combine like terms: 49 + -49 = 0
0 + 16m + m2 = 0 + -49
16m + m2 = 0 + -49

Combine like terms: 0 + -49 = -49
16m + m2 = -49

The m term is 16m.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16m + 64 + m2 = -49 + 64

Reorder the terms:
64 + 16m + m2 = -49 + 64

Combine like terms: -49 + 64 = 15
64 + 16m + m2 = 15

Factor a perfect square on the left side:
(m + 8)(m + 8) = 15

Calculate the square root of the right side: 3.872983346

Break this problem into two subproblems by setting 
(m + 8) equal to 3.872983346 and -3.872983346.

Subproblem 1

m + 8 = 3.872983346 Simplifying m + 8 = 3.872983346 Reorder the terms: 8 + m = 3.872983346 Solving 8 + m = 3.872983346 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + m = 3.872983346 + -8 Combine like terms: 8 + -8 = 0 0 + m = 3.872983346 + -8 m = 3.872983346 + -8 Combine like terms: 3.872983346 + -8 = -4.127016654 m = -4.127016654 Simplifying m = -4.127016654

Subproblem 2

m + 8 = -3.872983346 Simplifying m + 8 = -3.872983346 Reorder the terms: 8 + m = -3.872983346 Solving 8 + m = -3.872983346 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + m = -3.872983346 + -8 Combine like terms: 8 + -8 = 0 0 + m = -3.872983346 + -8 m = -3.872983346 + -8 Combine like terms: -3.872983346 + -8 = -11.872983346 m = -11.872983346 Simplifying m = -11.872983346

Solution

The solution to the problem is based on the solutions from the subproblems. m = {-4.127016654, -11.872983346}

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