00:01
We're being asked to simplify the given expression.
00:03
Well, in this case, it looks like we're being asked to distribute 12i by 1 minus 9i.
00:10
In other words, we're trying to multiply.
00:12
So let's go ahead and distribute.
00:14
Well, 12 times 1 is just 12i, and then we'll multiply 12 by negative 9i, which is negative 108 i squared.
00:27
Okay, well, now we just want to simplify.
00:29
I noticed that neither of these terms are like terms, so we can't combine them.
00:34
However, take a look at our last term...