Question 44121
. 9x^2  + 0x -  3
-7x^2  + 6x +  0
=16x^2 - 6x - 3

I hope this helps 
P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk