X^2y^4-81x^2=0

Solution for X^2y^4-81x^2=0 equation:

Simplifying
X2y4 + -81x2 = 0

Reorder the terms:
-81x2 + y4X2 = 0

Solving
-81x2 + y4X2 = 0

Solving for variable 'x'.

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

Add '-1y4X2' to each side of the equation.
-81x2 + y4X2 + -1y4X2 = 0 + -1y4X2

Combine like terms: y4X2 + -1y4X2 = 0
-81x2 + 0 = 0 + -1y4X2
-81x2 = 0 + -1y4X2
Remove the zero:
-81x2 = -1y4X2

Divide each side by '-81'.
x2 = 0.01234567901y4X2

Simplifying
x2 = 0.01234567901y4X2

Take the square root of each side:
x = {-0.111111111y2X, 0.111111111y2X}