-3d(2d+1)=

Solution for -3d(2d+1)= equation:

Simplifying
-3d(2d + 1) = 0

Reorder the terms:
-3d(1 + 2d) = 0
(1 * -3d + 2d * -3d) = 0
(-3d + -6d2) = 0

Solving
-3d + -6d2 = 0

Solving for variable 'd'.

Factor out the Greatest Common Factor (GCF), '-3d'.
-3d(1 + 2d) = 0

Ignore the factor -3.
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 '(1 + 2d)' equal to zero and attempt to solve:

Simplifying
1 + 2d = 0

Solving
1 + 2d = 0

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

Add '-1' to each side of the equation.
1 + -1 + 2d = 0 + -1

Combine like terms: 1 + -1 = 0
0 + 2d = 0 + -1
2d = 0 + -1

Combine like terms: 0 + -1 = -1
2d = -1

Divide each side by '2'.
d = -0.5

Simplifying
d = -0.5
Solution
d = {0, -0.5}