。
Could you help me with my homework?
Literal
I [of-の] homework [object-を] help-get-[potential-もらえ-question-ませんか].
The polite request ~てもらえませんか literally 'can I not receive the [favor of] your doing' — a double-hedge: potential + negative question = maximum polite request. This is standard Japanese polite-request phrasing, far more distant/polite than ~てください.