9y^4-25x^2=0

Solution for 9y^4-25x^2=0 equation:

Simplifying
9y4 + -25x2 = 0

Reorder the terms:
-25x2 + 9y4 = 0

Solving
-25x2 + 9y4 = 0

Solving for variable 'x'.

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

Add '-9y4' to each side of the equation.
-25x2 + 9y4 + -9y4 = 0 + -9y4

Combine like terms: 9y4 + -9y4 = 0
-25x2 + 0 = 0 + -9y4
-25x2 = 0 + -9y4
Remove the zero:
-25x2 = -9y4

Divide each side by '-25'.
x2 = 0.36y4

Simplifying
x2 = 0.36y4

Take the square root of each side:
x = {-0.6y2, 0.6y2}