Sum and product of coefficient binomials

1. Jhenrique

686
Given two coefficient binomials $$\binom{a}{b}$$ and $$\binom{c}{d}$$ is possbile to express the sum and product those coefficient binomials as one other?

Staff: Mentor

Why don't you try answering your own question by expanding both and adding them or multiplying them?

3. Jhenrique

686
I didn't find an satisfactory answer, anyway, thanks!