2ab + b^2 / b and I must factor and simplify

Question

I have done 2 problems but not sure in my answers would like some insight thank you 

 

Answer 1

 

2ab + b^2/b =        

2ab + b*b/b =                 Definition of exponent

2ab + 1b =                      Identity property (b/b = 1)

b(2a +1)  Simplified form.  Use distributive property