xy?+4x?y-7x?y-3xy?-3 and x?y +xy?

Dear Student

Your  question  is  not  clear  and  appears  to  be  incomplete.  (Mention what do we need to do in the question.) Recheck  your  question  and  please be  a  little  specific  so  that  we  can  provide  you with some  meaningful  help. Looking forward to  hear from  you again!

Regards