Answer:
120a^4b^4
Step-by-step explanation:
Personally I would split this into steps. I would first multiply (4a^2b) with (-2ab^2). Using distributive property the product would be -8a^3b^3.Then I would multiply -5 with 3ab, which would be -15ab. Finally, I would multiply -15ab with -8a^3b^3, which is 120a^4b^4
