m(m+4)=-3

Solution for m(m+4)=-3 equation:

Simplifying
m(m + 4) = -3

Reorder the terms:
m(4 + m) = -3
(4 * m + m * m) = -3
(4m + m2) = -3

Solving
4m + m2 = -3

Solving for variable 'm'.

Reorder the terms:
3 + 4m + m2 = -3 + 3

Combine like terms: -3 + 3 = 0
3 + 4m + m2 = 0

Factor a trinomial.
(3 + m)(1 + m) = 0

Subproblem 1
Set the factor '(3 + m)' equal to zero and attempt to solve:

Simplifying
3 + m = 0

Solving
3 + m = 0

Move all terms containing m to the left, all other terms to the right.

Add '-3' to each side of the equation.
3 + -3 + m = 0 + -3

Combine like terms: 3 + -3 = 0
0 + m = 0 + -3
m = 0 + -3

Combine like terms: 0 + -3 = -3
m = -3

Simplifying
m = -3
Subproblem 2
Set the factor '(1 + m)' equal to zero and attempt to solve:

Simplifying
1 + m = 0

Solving
1 + m = 0

Move all terms containing m to the left, all other terms to the right.

Add '-1' to each side of the equation.
1 + -1 + m = 0 + -1

Combine like terms: 1 + -1 = 0
0 + m = 0 + -1
m = 0 + -1

Combine like terms: 0 + -1 = -1
m = -1

Simplifying
m = -1
Solution
m = {-3, -1}