Question

PLEASE HELP !!! I’LL GIVE U BRAINLIST / CROWN !!!! please and thank youuu

Answer 1

Answer:

$128i^{3} -320i^{4}$

Step-by-step explanation:

$a^{3}b = (-4i)^{3}(-2+5i) = (-64^{3})(-2+5i) = 128i^{3} - 320i^{4}$