Answer:
72y^5
Step-by-step explanation:
Since 3y^2 is just 3y(3y) and 2y^3 is just (2y)(2y)(2y) we can simply multiply the terms. Count the number of y's you multiplied and that's to what power you should put and 3x3x2x2x2 should be self explanatory :)
(3y)(3y)(2y)(2y)(2y)