Answer:
[tex]b + 3 + \frac{4}{3b}[/tex]
Step-by-step explanation:
[tex]\frac{3b^2 + 9b + 4}{3b}[/tex]
=> 3b²/3b = b
=> 9b/3b = 3
=> 4/3b = 4/3b
Therefore the final answer would be;
Hope this helps!