Answer:
24
Step-by-step explanation:
In a deck of 52 cards, there are 4 kings and 4 queens
Selection of 3 kings out of 4 = 4 C 3 = 4
Selection of 2 queens out of 4 = 6
So, total number of selections = 4 x 6 = 24
1) (x+3)(x+4)
2) (x-9)(x+1)
3) (x-6)(x+5)
4) (x-3)(x-5)
5) (x-10)(x+1)
6) (x+3)(x+8)
7) (x-2)(x-8)
8) (x+4)(x-1)
9) (x-9)(x+5)
10) (x-8)(x+2)