The following expression i am looking to confirm whether my answer is correct:

$\displaystyle \displaystyle \frac {6a+3}{2a^2+5a+2}$

For the above expression my answer is $\displaystyle \displaystyle \frac {3}{a+2}$

The book however has the answer as $\displaystyle \displaystyle \frac {3}{2a+1}$

Can anyone verify if i'm incorrect in my answer and why?

Cheers

BIOS