(xy-1)(xy+1)(x+3)=0

Solution for (xy-1)(xy+1)(x+3)=0 equation:

Simplifying
(xy + -1)(xy + 1)(x + 3) = 0

Reorder the terms:
(-1 + xy)(xy + 1)(x + 3) = 0

Reorder the terms:
(-1 + xy)(1 + xy)(x + 3) = 0

Reorder the terms:
(-1 + xy)(1 + xy)(3 + x) = 0

Multiply (-1 + xy) * (1 + xy)
(-1(1 + xy) + xy(1 + xy))(3 + x) = 0
((1 * -1 + xy * -1) + xy(1 + xy))(3 + x) = 0
((-1 + -1xy) + xy(1 + xy))(3 + x) = 0
(-1 + -1xy + (1 * xy + xy * xy))(3 + x) = 0
(-1 + -1xy + (1xy + x2y2))(3 + x) = 0

Combine like terms: -1xy + 1xy = 0
(-1 + 0 + x2y2)(3 + x) = 0
(-1 + x2y2)(3 + x) = 0

Multiply (-1 + x2y2) * (3 + x)
(-1(3 + x) + x2y2(3 + x)) = 0
((3 * -1 + x * -1) + x2y2(3 + x)) = 0
((-3 + -1x) + x2y2(3 + x)) = 0
(-3 + -1x + (3 * x2y2 + x * x2y2)) = 0
(-3 + -1x + (3x2y2 + x3y2)) = 0
(-3 + -1x + 3x2y2 + x3y2) = 0

Solving
-3 + -1x + 3x2y2 + x3y2 = 0

Solving for variable 'x'.

The solution to this equation could not be determined.