d^2-20d+36=0

Solution for d^2-20d+36=0 equation:

Simplifying
d2 + -20d + 36 = 0

Reorder the terms:
36 + -20d + d2 = 0

Solving
36 + -20d + d2 = 0

Solving for variable 'd'.

Factor a trinomial.
(2 + -1d)(18 + -1d) = 0

Subproblem 1
Set the factor '(2 + -1d)' equal to zero and attempt to solve:

Simplifying
2 + -1d = 0

Solving
2 + -1d = 0

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

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

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

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

Divide each side by '-1'.
d = 2

Simplifying
d = 2
Subproblem 2
Set the factor '(18 + -1d)' equal to zero and attempt to solve:

Simplifying
18 + -1d = 0

Solving
18 + -1d = 0

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

Add '-18' to each side of the equation.
18 + -18 + -1d = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -1d = 0 + -18
-1d = 0 + -18

Combine like terms: 0 + -18 = -18
-1d = -18

Divide each side by '-1'.
d = 18

Simplifying
d = 18
Solution
d = {2, 18}