Answer:
c, d and f are rational numbers
Step-by-step explanation:

-9y-42x
Because they are like terms that is the lowest they can go
Answer:
5^15
Step-by-step explanation:
if they have the same base then you add the two top vaules therfore giving you c.
Brainliest plzzzzzzz
Answer:
x^2 y^2(x+y)(x^2 - xy + y^2)
Step-by-step explanation:
x^2 y^2(x^3 + y^3)
(x+y)(x^2 - xy +y^2)
Answer:
b
Step-by-step explanation: