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NationalTutoringObservatory
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MathEd-PII

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volunteer
Yeah, so that would technically mean that I believe that there is 2 there.
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volunteer
because that would, it would bex minus X minus 36, and then x minus 36 again.
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volunteer
You understand how that works because there's two of them there.
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student
yeah
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volunteer
All right. So, from looking at this currently,
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volunteer
I think there are 3
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volunteer
Like if, could you click show examples again?
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volunteer
I'm sorry. I also have to relearn this myself.
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volunteer
Could you scroll up
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volunteer
I just want to look at the first part.
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volunteer
So HFX is formed by multiplications, so exponents add
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volunteer
so you
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volunteer
X equals a factor X minus 8.
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volunteer
OK, yeah. And then you find that fact. So the factor in two functions. So it'd be 3 x minus 8 cubed and then X + H.
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student
I don't get this far. Like how do they, like what do they do with the functioning?
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student
Is this was the original function, right?
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volunteer
Um, scroll up
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volunteer
Yes, that would be the original F of X and then G of X.
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student
So like what is going on here?
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volunteer
All right, so
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student
00, GF X.
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volunteer
yes
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student
But like, oh, the factor out this for 8.
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student
M + 8
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volunteer
Mhm. So,
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student
Oh, OK, yeah
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volunteer
if it looks like they would, you would add it together, like basically, you see how it's X minus 8 cubs.
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volunteer
and then
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volunteer
yes
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student
It's good, but I have a question. If the factor is X minus A, why are we also adding X + 8.
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volunteer
Mhm.
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student
because like they factored it out to be x minus A So like, why are we adding X per se with it.
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volunteer
that's state X minus 14 and then X minus 8.
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volunteer
331.
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volunteer
Mhm.
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volunteer
That is a good question.
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volunteer
3 X minus 8 cubed.
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volunteer
X +
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volunteer
cubed
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volunteer
and oh, OK, I see. So you see how
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volunteer
that's just saying what it's, that's what H of X is equal to, right?
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student
Right.
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volunteer
But you see how we're not using that in the bottom expression.
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volunteer
It would be 3 + 3.
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volunteer
+ 1
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volunteer
because you see how there's a, you see how the 3 is highlighted in that area, and the one has highlighted in the diagram.
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student
Yeah
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volunteer
So I think that would be the reason
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volunteer
And then there's a 3 again in F of X.
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volunteer
So you would add 3 from the F of X.
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volunteer
3 from the H of X and then the 1.
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student
because, oh yeah, cause it's more I fear
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volunteer
Mhm.
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student
when I think
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student
one like here
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student
Yeah, well, I just didn't understand where they got blood from.
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volunteer
No problem. I also have to figure it out because I don't I don't remember doing it.
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student
I need a, maybe it's an error.
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student
Let me see this
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student
OK.
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volunteer
All right, let's see. So we can see the X +1 in H in F of X and we see the X + 1 in G of X.
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student
Yeah
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volunteer
And so if we're trying to find X is equal to -1.
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volunteer
Yeah, 1 + 1 equals 2. Yeah, so that one makes sense.
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student
it makes sense. So this one would be like
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volunteer
I think so we are finding it for X equals 6, right?
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student
X minus 6, so this one.
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student
And this
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volunteer
So I think it would be X minus 6, that's 1, and then the y minus 36.
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student
OK
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student
that's
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volunteer
would be
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student
2
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student
264
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volunteer
2. So you would add those together, it would be 3.
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volunteer
So try 3 1st.
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volunteer
Yay
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volunteer
So that was the correct answer
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student
Yeah
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volunteer
Good
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volunteer
All right. So we
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student
Coke. Oh, OK
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volunteer
mhm, you see how it basically adds 3 in the
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student
Yeah
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volunteer
All right
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volunteer
So let's go on to the next one
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volunteer
OK.
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student
What is the leading term of the polymomia. Oh, this is um 4.
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volunteer
Are you sure
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student
No, I gave 4 posts the negative one.
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volunteer
Yup
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volunteer
So can you explain to me why it's -1?
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volunteer
Oh
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student
So.
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volunteer
apparently it's not negative 1. OK, let's look at it again.
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volunteer
I thought it was -1
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student
How is it not negative one. Whoops.
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volunteer
10 + 4 X.
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volunteer
minus X the 4th.
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volunteer
+ 7 x cubed
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