d^2+39d=0

Solution for d^2+39d=0 equation:

Simplifying
d2 + 39d = 0

Reorder the terms:
39d + d2 = 0

Solving
39d + d2 = 0

Solving for variable 'd'.

Factor out the Greatest Common Factor (GCF), 'd'.
d(39 + d) = 0

Subproblem 1
Set the factor 'd' equal to zero and attempt to solve:

Simplifying
d = 0

Solving
d = 0

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

Simplifying
d = 0
Subproblem 2
Set the factor '(39 + d)' equal to zero and attempt to solve:

Simplifying
39 + d = 0

Solving
39 + d = 0

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

Add '-39' to each side of the equation.
39 + -39 + d = 0 + -39

Combine like terms: 39 + -39 = 0
0 + d = 0 + -39
d = 0 + -39

Combine like terms: 0 + -39 = -39
d = -39

Simplifying
d = -39
Solution
d = {0, -39}