16a^2b^2-81c^4d^6=0

Solution for 16a^2b^2-81c^4d^6=0 equation:

Simplifying
16a2b2 + -81c4d6 = 0

Solving
16a2b2 + -81c4d6 = 0

Solving for variable 'a'.

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

Add '81c4d6' to each side of the equation.
16a2b2 + -81c4d6 + 81c4d6 = 0 + 81c4d6

Combine like terms: -81c4d6 + 81c4d6 = 0
16a2b2 + 0 = 0 + 81c4d6
16a2b2 = 0 + 81c4d6
Remove the zero:
16a2b2 = 81c4d6

Divide each side by '16b2'.
a2 = 5.0625b-2c4d6

Simplifying
a2 = 5.0625b-2c4d6

Take the square root of each side:
a = {-2.25b-1c2d3, 2.25b-1c2d3}