d^2=d

Solution for d^2=d equation:

Simplifying
d2 = d

Solving
d2 = d

Solving for variable 'd'.

Reorder the terms:
-1d + d2 = d + -1d

Combine like terms: d + -1d = 0
-1d + d2 = 0

Factor out the Greatest Common Factor (GCF), 'd'.
d(-1 + 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 '(-1 + d)' equal to zero and attempt to solve:

Simplifying
-1 + d = 0

Solving
-1 + d = 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 + d = 0 + 1

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

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

Simplifying
d = 1
Solution
d = {0, 1}