x^4y^4-2x^2y^2-99=0

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Solution for x^4y^4-2x^2y^2-99=0 equation: 


Simplifying
x4y4 + -2x2y2 + -99 = 0

Reorder the terms:
-99 + -2x2y2 + x4y4 = 0

Solving
-99 + -2x2y2 + x4y4 = 0

Solving for variable 'x'.

Factor a trinomial.
(-9 + -1x2y2)(11 + -1x2y2) = 0


Subproblem 1
Set the factor '(-9 + -1x2y2)' equal to zero and attempt to solve:

Simplifying
-9 + -1x2y2 = 0

Solving
-9 + -1x2y2 = 0

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

Add '9' to each side of the equation.
-9 + 9 + -1x2y2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -1x2y2 = 0 + 9
-1x2y2 = 0 + 9

Combine like terms: 0 + 9 = 9
-1x2y2 = 9

Divide each side by '-1y2'.
x2 = -9y-2

Simplifying
x2 = -9y-2

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.

Subproblem 2
Set the factor '(11 + -1x2y2)' equal to zero and attempt to solve:

Simplifying
11 + -1x2y2 = 0

Solving
11 + -1x2y2 = 0

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

Add '-11' to each side of the equation.
11 + -11 + -1x2y2 = 0 + -11

Combine like terms: 11 + -11 = 0
0 + -1x2y2 = 0 + -11
-1x2y2 = 0 + -11

Combine like terms: 0 + -11 = -11
-1x2y2 = -11

Divide each side by '-1y2'.
x2 = 11y-2

Simplifying
x2 = 11y-2

Take the square root of each side:
x = {-3.31662479y-1, 3.31662479y-1}
Solution
x = {-3.31662479y-1, 3.31662479y-1}

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