Question

7/y-1 + 4/(y-1)^2 =

Answer 1

(7x-3)/((x-1)^2)

Answer 2

So you need to create a common denominator for the first expression. That means multiply above and below by (y-1). So you have 7(y-1)/(y-1)^2 + 4/(y-1)^2 Simplifying, you have: (7y-7 + 4)/(y-1)^2 Which becomes: (7y-3)/(y-1)^2 Hope that helps! http://www.tutorsean.net