If xy not equal 0 and x^2*y^2 -xy =30, which of the following could be y in terms of x?
I. 1/2x
II. -6/x
III. 5/x	Choose the correct choice from the following answers
A) I &II  B) II  C) II and III  D) IV  E) III
x2y2 - xy = 30   x2y2-xy-30 = 0   (xy-5)(xy+6)=0   xy = 5 or xy=-6   y = 5/x or y = -6/x   II and III only   II and III
<result>C</result>
If xy not equal 0 and x^2*y^2 -xy =30, which of the following could be y in terms of x?
I. 1/2x
II. -6/x
III. 5/x