Answer:
-240
Explanation:
−16√3⋅5√3
-16(5)√(3*3)
When you multiply numbers with the same radical (in this case square root) the numbers inside the radical can be multipled with each other. The numbers outside (in this case -16 and 5) should also be multiplied with each other.
-16(5)√9
-80√9
-80*3
-240