How do you multiply -8a ^ { 3} b ( 7b ^ { 2} - 5b + 18)?

1 Answer
Mar 11, 2018

-56a^3b^3+40a^3b^2-144a^3b

Explanation:

-8a^3b(7b^2-5b+18)
-8a^3b*7b^2-8a^3b*(-5b)-8a^3b*18
-56a^3b^3+40a^3b^2-144a^3b