9d^2-2=0

Solution for 9d^2-2=0 equation:

Simplifying
9d2 + -2 = 0

Reorder the terms:
-2 + 9d2 = 0

Solving
-2 + 9d2 = 0

Solving for variable 'd'.

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

Add '2' to each side of the equation.
-2 + 2 + 9d2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + 9d2 = 0 + 2
9d2 = 0 + 2

Combine like terms: 0 + 2 = 2
9d2 = 2

Divide each side by '9'.
d2 = 0.2222222222

Simplifying
d2 = 0.2222222222

Take the square root of each side:
d = {-0.471404521, 0.471404521}