Answer:
here is the answer , the work is really long... do you need that too?
[tex]x^{15}[/tex][tex]y^{12}[/tex] - 3[tex]x^{13}[/tex][tex]y^{11}[/tex] + 3[tex]x^{11}[/tex][tex]y^{10}[/tex]- [tex]x^{9}[/tex][tex]y^{9}[/tex]
Step-by-step explanation:
