yeswhoha yeswhoha
  • 13-12-2020
  • Mathematics
contestada

What is the answer to (3-4i)(5+6i)

Respuesta :

davner40034 davner40034
  • 13-12-2020
(3-4i)(5+6i)

15+18i-20i-24i^2

15+18i-20i+24=

39-2i
Answer Link
kkfoug
kkfoug kkfoug
  • 13-12-2020

Answer:

39 - 2i

Step-by-step explanation:

First, you need to FOIL the equation:

[tex](3 - 4i)(5 + 6i) \\15 + 18i - 20i - 24i^2\\15 - 2i - 24(-1)\\15 - 2i + 24\\39 - 2i\\[/tex]

Remember that [tex]i^2[/tex] equals -1.

Therefore, the answer to this question is 39 - 2i

I hope this helps!!

- Kay :)

Answer Link

Otras preguntas

How many protons, electrons, and neutrons are in I- and Li+ ?
what number is halfway between one sixth and five ninth
Describe an advantage of using dry ice to ship cardboard cartons of ice cream over long distances.
how does water help an organism maintain homeostasis ? can some help me answer that question please. the subject is science . ok
usely i get up at 6:00
how to slove A=10,000(1+.08/2)*12
what is 7.75 in word form?
i need help. Semir, Sarah, and SungSo decided to raise money for a local homeless shelter by working in a local deli. The deli agreed to donate to the shelter a
what is a Soviet-aligned nation in the Americas during the Cold War was
On a map, two cities are 5 and 3/4 inches apart. The scale of the map is 1/2 inch = 3 miles. What is the actual distance between the towns?