Question

Please solve this (^ means exponent)
(2x+y)^4 (2x+y)^5

Answer 1

"solve" is a word that is thrown about in here alot. It would help if we knew what kind of a solution determines a "solved" state.

This is akin to asking: Can you help me by going over there and doing something with that thing?

While you may know what you mean by "over there" and "that thing"; the rest of us have no real concept of what it is you actually need.

Answer 2

It is simply (2x + y)^9