(x - 1) (X - 2) = 0

A) (x-1)(X^-2)=0
B) 1/2x-3-3/x (2x-3) =5/x
c) x-2/x + 3x/x-2=4
d) 3x/ x-2-5/x+2=x^+5x+10/x^-4