Answer:
Step-by-step explanation:
a)
[tex]3x \times 4y \\ (3 \times 4)(x \times y) \\ 12xy[/tex]
b)
[tex]2p \times 3q \times 5r \\ (2 \times 3 \times 5) (p \times q \times r) \\ 30pqr[/tex]
