Andre picks a card at random. Without putting the first card back, he picks a second card at random. What is the probability that both cards will be hearts.

The cards showing are three hearts and two diamonds

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

13/52 * (13-1)/(52-1) = ?

I don't understand what you want in the last sentence.