Question

16i²+5i¹°-(3i)³

a) -5+43i
b) 41+38i
c) 2-14i
d) 5-43i
e) -5-18i

Answer 1

16i²+5i¹°-(3i)³

16(-1) + 5i² - (3i)³

16(-1) + 5(-1) - 27(-i)

-16 - 5 + 27i

- 21 + 27i   ou   3( - 7 + 9i)