Okay, welcome. And in this section we're going to talk about terms and factors. All right, let's, let's define them. We've talked about them again. So this may be somewhat of a review. But factors are numbers to be multiplied or divided in terms of numbers that are added or subtracted.
Right? I give you some examples here. Okay, expression three plus two. Well, three and the two are terms, because they're there, they're being added. The expression here, three a plus two, a, well, three a and two a terms, but in this exam, The three in the A of factors, because in this example, they are multiplied or multiplying three times a or three a. Alright, so what I'd like you to do here is pick out the terms in the following expression. All right?
So I'm going to do one here. So I'm going to do two for you. Let's look at this one. Well, three is a term, and two A is a term. And going a little bit further, the two I should have said two x is a term nother to AI apologize to x. Just two x alone is a factor.
All right, so two and x are factors of two x but to x By itself is a term in three by itself as a term. Okay, let's, let's look at one more. Let's look at this one down here. We have ABC plus a, well, a is a term, A plus A times B times C right here is a term. However, A, B, C are factors in the term, A, B, C, all right. Okay, I'm gonna stop it here.
And I'd like you to do the rest of them. Okay, what I'm asking you to do is just pick out the terms in the following expressions. All right, and then on the next slide, as usual, the answers will be there. So I'm going to stop now, hit the pause button and do and do the exercise. Okay, here are the answers. And again, we'll go over them.
Two x plus three, well, my factor is two x, and three, five y minus four, four and five y, ABC and a, ABC and a, these are all terms, x y squared plus eight. Well, a two factor an x y squared is one factor, r one plus r two, r one and r two, c one plus c two. Here are my factors. And right here A B plus x y a visa factor. An x, y is a factor factor, two A B two plus A B, we've got two as a factor and a B as a factor. So look at them.
If you have an issue, call me send me an email. We'll help you out. All right, we're going to clear the slide. Go to the next one where we're going to expand upon factors. All right. Okay, and this slide here, I asked you to pick out the factors in the following expressions just let's look at what what a factor is again, factor is a numbers to be multiplied or divided.
I didn't put the D in there, that's okay. So if you look here, well, to an extra factors, and I'll do one more for you are one in our two factors. So go through the rest. Stop the presentation. Go through the rest. And again, the answers are on the next slide.
All right, here are the answers for you. Right there, two x two, one, x five, y, five and Y. I mean, I can go through the rest of them, ABC. It's a, b, and c right there. This one, they're all factors two, that's pi, two pi FL. So it's two pi, F and l factors. So they're all factors in here.
That should be pretty straightforward. If you have some problems or questions, send me an email, give me a call. And I think we're going to move on to the next topic here. All right. In this example, what I want you to do is evaluate the following when I assigned a number to To my variables are literal numbers, so x equals four and y equals five. So I'm going to do one for you.
X plus y. Well, what are we going to do? What did I tell you? x equals four. So I got four, y equals five plus five. And what are we going to equal nine.
So x plus y equals nine in this example, when x equals four, and y equals five, okay, so what I would like you to do is substitute x, four for x, and five for y and the seat and these examples. And as always, the answers are in the next slide. All right here, the end You can see them, I don't have to call them out. And again, if you have any problems, send me an email, give me a call. We'll help you out. But again, this is pretty straightforward.
Just substitute for for X and Y for five and do the specific operation. So for instance, right here, what do I got? It's x squared, but that would be what? four squared. What do we got here? y squared.
So we got what? five squared times four which is x. All right? So again, any questions, concerns, email me. Give me a call. We'll work it out.