Answer:
13/21
Step-by-step explanation:
x^9^y^2 z^4
Recall the polynomial remainder theorem: if is a factor of some polynomial , then the remainder upon dividing by is .
Let and . The remainder left from dividing by is
If we subtract 5 from both sides, we'd get a "remainder" of 0, which suggests that we have to add -5 to to make a factor.
either b or c not sure