d^2+20d+100=

Solution for d^2+20d+100= equation:

Simplifying
d2 + 20d + 100 = 0

Reorder the terms:
100 + 20d + d2 = 0

Solving
100 + 20d + d2 = 0

Solving for variable 'd'.

Factor a trinomial.
(10 + d)(10 + d) = 0

Subproblem 1
Set the factor '(10 + d)' equal to zero and attempt to solve:

Simplifying
10 + d = 0

Solving
10 + d = 0

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

Add '-10' to each side of the equation.
10 + -10 + d = 0 + -10

Combine like terms: 10 + -10 = 0
0 + d = 0 + -10
d = 0 + -10

Combine like terms: 0 + -10 = -10
d = -10

Simplifying
d = -10
Subproblem 2
Set the factor '(10 + d)' equal to zero and attempt to solve:

Simplifying
10 + d = 0

Solving
10 + d = 0

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

Add '-10' to each side of the equation.
10 + -10 + d = 0 + -10

Combine like terms: 10 + -10 = 0
0 + d = 0 + -10
d = 0 + -10

Combine like terms: 0 + -10 = -10
d = -10

Simplifying
d = -10
Solution
d = {-10, -10}