note that (a + b)³ = a³ + 3a²b + 3ab² + b³
(2 + 4i)³ ← with a = 2 and b = 4i noting that i² = (√-1)² = -1
= 2³ + (3 × 4 × 4i ) + ( 3 × 2 × 16i² ) + ( 4i )³
= 8 + 48i - 96 - 64i
= - 88 - 16i
Answer:
that is your solution
hope it helps
D
Step-by-step explanation:
$49 one time payment so it is added.
$25 per month and he pays for a year(12 months) = 12 times 25
$49 + (12 × 25)
ops sorry thx for the free points
