Can you please help me with this math problem:

5 6 2 9 12 3
(4X Y Z) X (5X Y Z)

The numbers at the top are exponents.thank you

4x^5 y^6 z^2 5x^9 y^12 z^3

multiply the coefficients

20

keep the bases and add the exponents

20 x^14 y^18 x^5
This is the answer if I interpreted your problem correctly as you entered it above.