Question

Simplify (4-8i)(2-7i) @waterineyes

Answer 1

Remember that \(i^2 = -1\)

just use your regular foiling method here. \[(4)(2) -(4)(7i) -(8i)(2)+(8)(7)i^2\]Replace your i^2 and simplify :)

Answer 2

Oh ok. I got 8-44+56i^2

Answer 3

*44i

Answer 4

Sorry I am late.. :(

Answer 5

No no its ok! But is that right?^

Answer 6

And what is i^2?

Answer 7

i x i?

Answer 8

look at my fist post, first line.

Answer 9

Oh -1

Answer 10

Bean calm down.. :P

Answer 11

She wrote : 44i..

Answer 12

Oh yeah, I see that now.

Answer 13

Okay, so you have 8-44i +56(-1)

Answer 14

What do you get after you simplify that?

Answer 15

A Medal. :P

Answer 16

8-44i-56
-48-44i

Answer 17

lol water

Answer 18

Good job :)

Answer 19

Good.. :)

Answer 20

Yay! Finally! Thanks!

Answer 21

No problem :)

Answer 22

I have another one, but will make a new post.

Answer 23

Always remember that \[i^2 = -1\]\[i=\sqrt{-1}\]

Answer 24

Oh ok.