What is the solution to (-4a^2) (2a^-3) ^-4

Answer:its - 8a^-4

Step-by-step explanation:

multiply whats in the parenthesis first bc pemdas by foiling and then multiply the exponent when foiling you add the exponents so its 1 then 1 times - 4 is - 4 so it goes to - 8a ^-4 and - 8 bc - 4 times 2