Question

(−3 + 2i) • (2 + i)

Answer 1

Do you know foil?

Answer 2

yeah kinda i guess

Answer 3

that's really all this is. and then when you multiply i * i, it's -1

Answer 4

ohh okay thank you

Answer 5

no problem. tag me if you need more help or want to get your answer checked

Answer 6

okay imma solve it now

Answer 7

o would be -3i?

Answer 8

no. what did you get when you multiplied, before you combined?

Answer 9

huh

Answer 10

what did you get from foil?

Answer 11

im asking abou the o the f is 6 but i dont know the rest

Answer 12

oh, ok. Sorry, I thought you were saying that the final answer was -3i. That's right for O.
F is -6.

Answer 13

okay and i is 4i?

Answer 14

yes

Answer 15

what would L be??

Answer 16

\[2i \times i = 2i^2 = 2(-1) = -2\]

Answer 17

so when you add them all up you have
\[-6-3i+4i-2\] and you just have to combine like terms

Answer 18

so the answer is -7?

Answer 19

combine the i's and combine the constants. Don't mix them
(-3i + 4i) + (-6 - 2)
i - 8 is your answer

Answer 20

or rather -8 + i is the order it's usually written in

Answer 21

okay thank you

Answer 22

you're welcome