Question

green

Answer 1

I know about Pascal's triangle, but I don't know if that's what you're referring to.

Answer 2

Sure, do need an explanation of what it is, or do you have a problem you want me to look at?

Answer 3

you*

Answer 4

http://mathworld.wolfram.com/PascalsTheorem.html

Answer 5

Sure, do you know how to expand a binomial (something)^2?

Answer 6

Okay, let's start there then. Say you have something like (x + y)^2 and we want to expand that.

You can rewrite (x + y)^2 so that it's like:

(x + y)(x + y)
Make sense so far?

Answer 7

Good, now we're going to multiply the first x in (x + y) to BOTH the (x + y) in the other term to get:

x^2 + xy