Question 662510

{{{1/(y-1)- 2/(y+1)}}} .....LCD is {{{(y-1)(y+1)}}}


{{{(1(y+1)- 2(y-1))/(y+1)(y-1)}}} 


{{{(y+1- 2y+2)/(y+1)(y-1)}}} 


{{{(3y+3)/(y+1)(y-1)}}}


{{{3(y+1)/(y+1)(y-1)}}}


{{{3cross((y+1))/cross((y+1))(y-1)}}}


{{{3/(y-1)}}}