00:01
Here we're using the distributive property in order to evaluate this expression and ultimately remove the parentheses from it.
00:06
So using this distributive property, we can remember this idea of foil.
00:11
And this just tells us this order of operations technically.
00:14
So we're going to start with these first terms and multiply those by each other.
00:18
So it's going to be 3x times x, which gives us 3x squared.
00:23
Next, we're going to take these outside terms and multiply them together.
00:26
So we see that we have 3x times a positive 5, which gives us a positive 15x.
00:35
Next, we're going to work with the inside terms in this expression.
00:39
So that's going to be negative 1 times x, which gives us a negative 1x...