Answer:
[tex]\large\boxed{13w^4+11v}[/tex]
Step-by-step explanation:
[tex](-2w^4+11v)-(-15w^4)=-2w^4+11v+15w^4\\\\\text{combine like terms}\\\\=(-2w^4+15w^4)+11v=13w^4+11v[/tex]
