Jamal is playing a card game with his friends. The deck has red and black cards numbered 1-12. Red cards represent negative numbers, black cards represent positive numbers. If he needs a product of 24, what are the possible combinations of cards Jamal could use?

First let us assume all black cards, the numbers that will result in 24 is:

2 * 12

3 * 8

4 * 6

Similar case with the red cards:

-2 * - 12

-3 * - 8

-4 * - 6

Assuming the product can be negative, so we can also take the combination of two cards (1 red and 1 black):

2 * - 12

3 * - 8

4 * - 6

-2 * 12

-3 * 8

-4 * 6

So there are a total of 12 combinations.