00:01
So in short, the answer to this is yes, and i'll show you how.
00:05
So first of all, remember that if something's squared, it's being multiplied by itself.
00:10
So this is equivalent to x plus 9 times x plus 9.
00:15
This is the same exact thing, just written out, because if something gets squared, it's being multiplied by itself.
00:23
So then we can use foil first, outer, and our last, to expand this.
00:29
So first we're going to multiply our first term x by the first term of the other binomial.
00:36
X times x, we're going to add the exponent, and we get x squared.
00:43
Then we're going to do the outer, which would be the outermost terms, which is this x and this 9.
00:51
So x times 9 gives us 9x.
00:55
Then we're going to do inner, so that would be this 9 and this x...