Question

.

Answer 1

@zepdrix

Answer 2

So what are we working on? :)

Answer 3

The same thing as yesterday ()_()

Answer 4

mm i had another one ready.. lemme see if i can find it

Answer 5

\(\Large\rm 5x^2-12x-9\)
Did we do this one yet?
Mmm I don't think so.
Give it a try.

Answer 6

Ok first multiply so i get...
-45
then the worst part ever >:(


can i pwease just find a list? c:

Answer 7

why? you can't use a list on the test.
that's a stupid question :(

Answer 8

I hate finding factors its too hard :( thats the part i screwed up T_T

Answer 9

Maybe that's what we should practice then,
not this whole problem, just the factors stuff.

I'm going to list the factors of 60:
\(\Large\rm 1,2,3,4,5,6,10,12,15,20,30,60\)

Answer 10

What are the factors of 45, there are a lot less, it should be easier.

Answer 11

ok
1 x 45 = 45
9 x 5 = 45
thats all there is .-.

Answer 12

no, that's not all of them.

Answer 13

9 is a composite number

Answer 14

so take a 3 out of the 9, give it to the 5

Answer 15

that would be 15 .-.
5 x 3 =15

Answer 16

no.

Answer 17

1 3 5 9 15 45

Answer 18

9 x 5
(3 x 3) x 5
3 x (3 x 5)
3 x 15

Answer 19

It's not 3x5, u have another 3 after that

Answer 20

so 3 and 15.... ok... -_-

Answer 21

lol wut? .-.

Answer 22

\[\Large\rm \color{orangered}{9}\times5=45\]To find the other factors, you have to break up these composite numbers like this orange one.

Answer 23

Thats prime factorization right?

Answer 24

\[\Large\rm \color{orangered}{(3\times3)}\times5=45\]And then group them differently,\[\Large\rm 3\times(3\times5)=45\]

Answer 25

I dunno, it's something like that I guess.

Answer 26

\[\Large\rm 3\times15=45\]

Answer 27

Ok oh :)
so
1,3 5,9,15,45
Are the factors right?

Answer 28

yes

Answer 29

so finish it -_- nao .-.

Answer 30

k c:

Answer 31

\[(5x^2-15x)(+3x-12)\]
divide
\[3x(x+3)~~~~~3(1x+3)\]

Answer 32

3x+3
x+3

Answer 33

DONE

Answer 34

hmm not quite. let's see..

Answer 35

it's really important that this plus be OUTSIDE the brackets,\[(5x^2-15x)+(3x-12)\]If I was your teacher, I would take some credit off for that :d

Answer 36

3 from the second set? Looks good.\[(5x^2-15x)+3(x-4)\]

Answer 37

You cannot take a 3 from the first step.

Answer 38

Oh you made a boo boo earlier, why is there a -12 on the end.
It's -9 D:

Answer 39

\[\Large\rm 5x^2-12x-9\]

Answer 40

\[(5x^2-15x)~~(3x-9)\]
first one needs to be divided by 5
\[5x(x-3)\]
2nd one by 3
\[3(x-3)\]
then you get the answers...
5x+3
x-3

Answer 41

Again, you forgot your plus sign, -1 points.
Looks good besides that though! yay good job! \c:

Answer 42

TT_TT one point :c

Answer 43

Let's try to find the factors of 72.

Answer 44

No online list or table...
just one pair at a time.

Answer 45

what's 72 divided by 2?

Answer 46

36