arla65 arla65
  • 20-09-2021
  • Mathematics
contestada

What is the product of (2 + 3i) and (4 – 3i)?
OA. 8-91
B. 8 - 31
O C. 17 – 182
D. 17 + 6

Respuesta :

jimrgrant1 jimrgrant1
  • 20-09-2021

Answer:

17 + 6i

Step-by-step explanation:

(2 + 3i)(4 - 3i) ← expand product using FOIL

= 8 - 6I + 12I - 9I² ( note i² = - 1 )

= 8 + 6i - 9(- 1)

= 8 + 6i + 9

= 17 + 6i

Answer Link

Otras preguntas

DESCRIBE USING ROSTER METHOD MONTHS WITH 31 DAYS
what are the north germanic languages?
If a train travels m miles in h hours and 45 minutes, what is the average speed in miles per hour ?a)  m / (h + 3/4 ), b) m / 7h, c) m ( h + 3/4 ), d) ( m + 45
what are the north germanic languages?
3x+9 -------- how do I solve this? 4x+12
what is a false analogy fallacy?
if one parent is homozygous for black hair and the other parent to homozygous for blonde hair, what are the chances that their children will have blonde hair? w
A man wishes to cover his floor with tiles, each one measuring 3/4 inch by 2 inches. If his room is a rectangle, measuring 12 feet by 18 feet, how many such ti
what are the north germanic languages?
Find the value of y that satisfies the equation, 8.8y - 4 = 7.7y + 7.a) 1.1, b) 7.7, c) 8.0, d) 10.0, e) 11.0Is the 11  right answer ???? I don't understand thi