Question

multiply (x-11)(x-2i)(x+2i)?

Answer 1

Foil method!!

Answer 2

Or how I like to call it. The rainbow method.

Answer 3

first start with
\[(x-2i)(x+2i)=x^2-(2i)^2=x^2-4i^2=x^2-4\times (-1)=x^2+4\]
wow i really dragged that one out

Answer 4

oh okay, I forgot about that method.

Answer 5

rainbow good
foil bad

Answer 6

lol

Answer 7

what?

Answer 8

lol

Answer 9

I took your seriously for a second there.

Answer 10

http://www.youtube.com/watch?v=PW_97-R3S4M

Answer 11

well ty for helping