m^2+12m=49

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Solution for m^2+12m=49 equation:


Simplifying
m2 + 12m = 49

Reorder the terms:
12m + m2 = 49

Solving
12m + m2 = 49

Solving for variable 'm'.

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

Combine like terms: 49 + -49 = 0
-49 + 12m + m2 = 0

Begin completing the square.

Move the constant term to the right:

Add '49' to each side of the equation.
-49 + 12m + 49 + m2 = 0 + 49

Reorder the terms:
-49 + 49 + 12m + m2 = 0 + 49

Combine like terms: -49 + 49 = 0
0 + 12m + m2 = 0 + 49
12m + m2 = 0 + 49

Combine like terms: 0 + 49 = 49
12m + m2 = 49

The m term is 12m.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12m + 36 + m2 = 49 + 36

Reorder the terms:
36 + 12m + m2 = 49 + 36

Combine like terms: 49 + 36 = 85
36 + 12m + m2 = 85

Factor a perfect square on the left side:
(m + 6)(m + 6) = 85

Calculate the square root of the right side: 9.219544457

Break this problem into two subproblems by setting 
(m + 6) equal to 9.219544457 and -9.219544457.

Subproblem 1

m + 6 = 9.219544457 Simplifying m + 6 = 9.219544457 Reorder the terms: 6 + m = 9.219544457 Solving 6 + m = 9.219544457 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + m = 9.219544457 + -6 Combine like terms: 6 + -6 = 0 0 + m = 9.219544457 + -6 m = 9.219544457 + -6 Combine like terms: 9.219544457 + -6 = 3.219544457 m = 3.219544457 Simplifying m = 3.219544457

Subproblem 2

m + 6 = -9.219544457 Simplifying m + 6 = -9.219544457 Reorder the terms: 6 + m = -9.219544457 Solving 6 + m = -9.219544457 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + m = -9.219544457 + -6 Combine like terms: 6 + -6 = 0 0 + m = -9.219544457 + -6 m = -9.219544457 + -6 Combine like terms: -9.219544457 + -6 = -15.219544457 m = -15.219544457 Simplifying m = -15.219544457

Solution

The solution to the problem is based on the solutions from the subproblems. m = {3.219544457, -15.219544457}

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