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Mathematics 24 Online
ILovePuppiesLol (ilovepuppieslol):

http://prntscr.com/ax74h6

OpenStudy (math&ing001):

You can see that the common factor is 3a²b.

ILovePuppiesLol (ilovepuppieslol):

why r u copying my pic ;-; @math&ing001

ILovePuppiesLol (ilovepuppieslol):

yes i see that

OpenStudy (math&ing001):

That's @AloneS 's pic lol Well after identifying the common factor, you basically just factorize.

ILovePuppiesLol (ilovepuppieslol):

factorize? @math&ing001

alones (alones):

;~;

OpenStudy (tomy12345):

ok lets go thru this step by step

OpenStudy (tomy12345):

you ready

OpenStudy (tomy12345):

first we factor the coefficients

OpenStudy (math&ing001):

Here's an example 56a²b³ + 24ab² = 8ab²*7ab + 8ab²*3 = 8ab²(7ab+3)

OpenStudy (tomy12345):

sorry

OpenStudy (tomy12345):

first we need to find the GCF of the coefficients

OpenStudy (tomy12345):

so...

OpenStudy (tomy12345):

we need the GCF of 9, 24, and 15

OpenStudy (tomy12345):

do you know what the GCF of those numbers are?

ILovePuppiesLol (ilovepuppieslol):

3

OpenStudy (tomy12345):

I'll give a hint list the prime factors of these three numbers and find the factor that they all have in common.

OpenStudy (tomy12345):

can you do that?

OpenStudy (tomy12345):

sorry ddi not see that 3. so ok

OpenStudy (tomy12345):

now we need to find the GCF of variable a and b.

ILovePuppiesLol (ilovepuppieslol):

i do not understand that part

OpenStudy (tomy12345):

ok now let's first find the GCF of our 3 a variables

OpenStudy (tomy12345):

a^4 a^3 a^2 now i will factorize them and you will tell me what they have in common

OpenStudy (tomy12345):

ok? @ILovePuppiesLol

OpenStudy (tomy12345):

@ILovePuppiesLol

OpenStudy (tomy12345):

a^4 = a*a*a*a a^3 = a*a*a a^2 = a*a how much a's do the three have in common?

ILovePuppiesLol (ilovepuppieslol):

i see 2 a's in common @tomy12345 lol

OpenStudy (tomy12345):

ok now for the b variables

OpenStudy (tomy12345):

b^3 = b*b*b b^2 = b*b b^1 = b how much b's do the three have in common?

ILovePuppiesLol (ilovepuppieslol):

1

OpenStudy (tomy12345):

ok

OpenStudy (tomy12345):

so to factor completely we need to do opposite of distributive property.

OpenStudy (tomy12345):

so when we finish factorizing it should look something like... (this is just a example):...

OpenStudy (tomy12345):

\[3a^3b^6(3^4-4a^3+b^2)\]

OpenStudy (tomy12345):

now lets use the information of the... coefficient = a-variable = b-variable = these are the gcf's

OpenStudy (tomy12345):

now can you fill the numbers in?

ILovePuppiesLol (ilovepuppieslol):

the a variable is 2 and b variable is 1 right

OpenStudy (tomy12345):

yes now for the coefficient

ILovePuppiesLol (ilovepuppieslol):

3?

OpenStudy (tomy12345):

yes now can you put the GCF of that trinomial together? using...

OpenStudy (tomy12345):

coefficient = 3 a-variable = a^2 b-variable = b

ILovePuppiesLol (ilovepuppieslol):

yes sir

ILovePuppiesLol (ilovepuppieslol):

\[3a^2b\]

OpenStudy (tomy12345):

perfect

OpenStudy (tomy12345):

now for the next part

OpenStudy (tomy12345):

ok now for your three other terms

OpenStudy (tomy12345):

this is how our equation looks right now...

OpenStudy (tomy12345):

\[3a^2b(?+?-?)\]

ILovePuppiesLol (ilovepuppieslol):

i am no genius

OpenStudy (tomy12345):

now to find out what goes in those three spots we divide our three terms by...

ILovePuppiesLol (ilovepuppieslol):

http://prntscr.com/axiwet

OpenStudy (tomy12345):

now to find out what goes in those three spots we divide our three terms by...\[3a^2\]

OpenStudy (tomy12345):

woops sorry...

ILovePuppiesLol (ilovepuppieslol):

was i correct?

OpenStudy (tomy12345):

\[3a^2b\]

OpenStudy (tomy12345):

let me check

OpenStudy (tomy12345):

no

OpenStudy (tomy12345):

ok lets go thru it one term after another

OpenStudy (tomy12345):

dividing \[3a^2b / 9a^4b^3\]

OpenStudy (tomy12345):

so first of all you know that when dividing variables you just subtract there exponents. can you divide it know for me?

OpenStudy (tomy12345):

can you divide it now for me?

OpenStudy (tomy12345):

i can show you its simple (if you want)

ILovePuppiesLol (ilovepuppieslol):

sure, please show me, i hate these problems @TOMY12345 don't forget to tag me lol xD if i am inactive

OpenStudy (tomy12345):

ok sorry

OpenStudy (tomy12345):

so part by part here to

OpenStudy (tomy12345):

first the coefficient 9/3

OpenStudy (tomy12345):

=

OpenStudy (tomy12345):

@ILovePuppiesLol

ILovePuppiesLol (ilovepuppieslol):

3

OpenStudy (tomy12345):

ok

OpenStudy (tomy12345):

now the a variable (remember all we have to do is subtract exponents when dividing)...

OpenStudy (tomy12345):

\[a^4/a^2\]

OpenStudy (tomy12345):

=

ILovePuppiesLol (ilovepuppieslol):

a^2

OpenStudy (tomy12345):

good

OpenStudy (tomy12345):

now can you do the b variable by yourself for the first term

OpenStudy (tomy12345):

@ILovePuppiesLol

ILovePuppiesLol (ilovepuppieslol):

reporting for duty sir

ILovePuppiesLol (ilovepuppieslol):

its just b

OpenStudy (tomy12345):

sorry for taging you to much xd

OpenStudy (tomy12345):

no, look... write the first term and post it for me to see...

ILovePuppiesLol (ilovepuppieslol):

wait was it supposed to be b^2

OpenStudy (tomy12345):

yes

ILovePuppiesLol (ilovepuppieslol):

ohhhhh

OpenStudy (tomy12345):

did you get it why it is b^2

OpenStudy (tomy12345):

\[3a^2b(3a^2b^2+?−?)\]

OpenStudy (tomy12345):

can you try finding out the other two terms by yourself (just want to make sure you got how to do it)

ILovePuppiesLol (ilovepuppieslol):

8ab-5?

OpenStudy (tomy12345):

YES,YES you got it nice job (did you guess)

ILovePuppiesLol (ilovepuppieslol):

nope

OpenStudy (tomy12345):

good job

OpenStudy (tomy12345):

;)

OpenStudy (tomy12345):

but you got it that was the important part

OpenStudy (tomy12345):

it is kind of interesting why when dividing variables you subtract instead :)

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