(D^2-2d-1)=0

Solution for (D^2-2d-1)=0 equation:

Simplifying
(D2 + -2d + -1) = 0

Reorder the terms:
(-1 + D2 + -2d) = 0

Remove parenthesis around (-1 + D2 + -2d)
-1 + D2 + -2d = 0

Solving
-1 + D2 + -2d = 0

Solving for variable 'D'.

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

Add '1' to each side of the equation.
-1 + D2 + 1 + -2d = 0 + 1

Reorder the terms:
-1 + 1 + D2 + -2d = 0 + 1

Combine like terms: -1 + 1 = 0
0 + D2 + -2d = 0 + 1
D2 + -2d = 0 + 1

Combine like terms: 0 + 1 = 1
D2 + -2d = 1

Add '2d' to each side of the equation.
D2 + -2d + 2d = 1 + 2d

Combine like terms: -2d + 2d = 0
D2 + 0 = 1 + 2d
D2 = 1 + 2d

Simplifying
D2 = 1 + 2d

Reorder the terms:
-1 + D2 + -2d = 1 + 2d + -1 + -2d

Reorder the terms:
-1 + D2 + -2d = 1 + -1 + 2d + -2d

Combine like terms: 1 + -1 = 0
-1 + D2 + -2d = 0 + 2d + -2d
-1 + D2 + -2d = 2d + -2d

Combine like terms: 2d + -2d = 0
-1 + D2 + -2d = 0

The solution to this equation could not be determined.