Complex Numbers: Multiplying - Ex 1

[irenegarrislikeharrisbutwi]

I appreciate that you take time out of your day to help struggling students. Thanks!

[seaners]

Thats funny both had short cuts to foiling. The first one you could have used (A+B)^2=A^2+2AB+B^2. The second one was (A^2-B^2)=(A-B)(A+B)

[AydenMorton-hf]

why he useing a sharpie on a white borad

[Schlynn]

@JaredL607 I'm pretty sure that he has a video of that. Try searching on his youtube page.

[prolarka]

@JaredL607
u mean, he sud make a video about its proof? bcuz there r many explanations (how to use) on the net (even patrick has 2 vids about that)

[slayrr]

can some1 help me? If when multiplying for example (-11+i9)^5 do you just multiply (-11+i9) five times???