simplify each expression

Question

y^2+y/y+x^2 y 

Answer 1

(y²+y)/(y+yx²)

 

     = y(y+1)/y(1+x²)

 

Canceling the y's in the numerator and denominator:

 

     = (y+1)/(x²+1)

 

Note that y cannot equal zero (y≠0) since it would make the denominator of the original expression equal zero, which is undefined.