Katieburry9 Katieburry9

16-06-2021
Mathematics

contestada

Multiply the following complex numbers:
(8 - 3i)(6 + 5i)
A. 33 + 221
B. 33 - 221
C. 63 + 221
O D. 63 - 221

Respuesta :

wegnerkolmp2741o wegnerkolmp2741o

16-06-2021

Answer:

63+22i

Step-by-step explanation:

(8 - 3i)(6 + 5i)

FOIL

first: 8*6 = 48

outer: 8*5i = 40i

inner: -3i* 6 = -18i

last: -3i*5i = -15 i^2 = -15(-1) = 15

Add together

48+40i -18i +15

Combine like terms

63+22i

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