Question

(8-6i)(-4-4i) Help Please

Answer 1

do you have to multiply that?

Answer 2

If (a+bi)(a-bi)= a^2 +b^
Yes we have to multiply

Answer 3

you can use the foil method.

Answer 4

Right when I used the foil method on a problem similar to this I got it wrong.

Answer 5

are you sure you did it correctly?

Answer 6

well that one was 4i(-2-8i) so Im not 100% sure

Answer 7

32-32i

Answer 8

and you should have gotten 32-8i for the other one.. but anyways, close, but not quite... it's -32-32i

Answer 9

okay. and then when you do the -6*-4 half you get -24-24i

Answer 10

no.... because it's -6i... do you know i represents?

Answer 11

\[\sqrt{-1}\]

Answer 12

yep, so, you'd get|dw:1426523043013:dw

Answer 13

woah.. okay, hang on