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OpenStudy (disco619):
8r(4^2+3y)
i can't do more.... CONFUSING!!!
OpenStudy (disco619):
I don't know if what i did till now is right or not...
OpenStudy (anonymous):
alright thanks though and are ther more people in the morning
OpenStudy (anonymous):
since its pretty late
OpenStudy (anonymous):
to help out
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OpenStudy (callisto):
32r^2+24ry-4xr-3xy
Let's factorize the first two terms:
32r^2+24ry
^ What are the common factors of these two terms?
OpenStudy (anonymous):
i wanna say 2r,r
OpenStudy (disco619):
i'd say '8' and 'r'
Take the Highest Multiple...
I'll leave the Rest to Callisto
OpenStudy (callisto):
Let's say, we pick 2r out:
32r^2+24ry
= 2r(16r+12y)
It seems we can further factorize (16r+12y). What is the common factor in these two terms?
OpenStudy (anonymous):
4,2,1
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OpenStudy (anonymous):
right ?
OpenStudy (callisto):
Take the largest one :) If you take 2, then we can further factorize it again. At last, we'll get 4 :D
So, we pick 4 out.
32r^2+24ry
= 2r(16r+12y)
= 2r [ 4 (4r + 3y) ]
= 8r (4r+3y)
So far so good?
OpenStudy (anonymous):
yea is that the answer though ?
OpenStudy (callisto):
No.
Now, factorize the last two terms:
What are the common factors of -4xr-3xy?
OpenStudy (anonymous):
i got -1, and -x
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OpenStudy (callisto):
Which one should you pick?
OpenStudy (anonymous):
umm -1 ?
OpenStudy (callisto):
Why?
OpenStudy (anonymous):
wait but its negative.
OpenStudy (anonymous):
thex could be before riight.
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OpenStudy (callisto):
You can take out both -1 and x
OpenStudy (callisto):
Now, it's your turn to factorize -4xr-3xy. Can you give it a try?
OpenStudy (anonymous):
i got -x(4r+3y)
OpenStudy (callisto):
Right.
So, for 32r^2+24ry-4xr-3xy, we get:
32r^2+24ry-4xr-3xy
= 8r (4r+3y) -x(4r+3y)
Is it clear to you?
OpenStudy (anonymous):
yess so thats the final answer or no lol.
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OpenStudy (callisto):
No, one more step.
OpenStudy (anonymous):
okie dokie
OpenStudy (anonymous):
factor the last one ?
OpenStudy (callisto):
Factorize this: 8r (4r+3y) -x(4r+3y)
OpenStudy (anonymous):
i got (4r+3y) and (8r-x)
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OpenStudy (callisto):
When you factorize by grouping, you make it into factored form..So, it is
(8r-x)(4r+3y)
OpenStudy (anonymous):
and my choices are 1. (x-8r) 2. (8x-r) 3. (4r+3y) 4. none and 5. (3r+4y)
OpenStudy (anonymous):
so i choose 3 right ?
OpenStudy (callisto):
Yes.
OpenStudy (anonymous):
Wow your an expert thank you so much.
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