Mathematics
9 Online
OpenStudy (anonymous):
http://media01.switchedononline.com/g_alg01_2011/10/274.gif
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OpenStudy (anonymous):
\[\frac{d+3}{8d}-\frac{2d+1}{10d^2}= \frac{10d(d+3)-8(2d+1)}{80d^2}\]
OpenStudy (anonymous):
can you solve from here?
OpenStudy (anonymous):
Yes but how come its not 80d^2?
OpenStudy (anonymous):
cubed I mean!
OpenStudy (anonymous):
denominator is 80d^2
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OpenStudy (anonymous):
Yea but why is it not 80 cubed
OpenStudy (anonymous):
\[\frac{10d(d+3)-8(2d+1)}{80d^2}\]
yes denominator is 80d^2
OpenStudy (anonymous):
or you can write this way is the same mean
\[\frac{10d(d+3)}{80d^2}-\frac{8(2d+1)}{80d^2}\]
OpenStudy (anonymous):
\[\frac{10d^2+30d}{80d^2}-\frac{16d+8}{80d^2}\]
OpenStudy (anonymous):
K got it. Then i get 10d^2 +14d+8 over 80 d ^2?
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OpenStudy (anonymous):
10d^2 +14d-8 over 80 d ^2?
OpenStudy (anonymous):
So then how would i simplify that?
OpenStudy (anonymous):
internet problem I have restart
OpenStudy (anonymous):
oh ok
OpenStudy (anonymous):
let me work on my paper
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OpenStudy (anonymous):
kk
OpenStudy (anonymous):
didision by 8 you get
internet have a problem again
OpenStudy (anonymous):
(5d^2+7d-4): 40d^2
OpenStudy (anonymous):
so u divided by 8?
OpenStudy (anonymous):
yes
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OpenStudy (anonymous):
divided top and bottom by 8
OpenStudy (anonymous):
but eight divided into 80 is 10?
OpenStudy (anonymous):
sorry divide by 2 not 8
OpenStudy (anonymous):
I have to go
OpenStudy (anonymous):
k thanks but whats the final answer??
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OpenStudy (anonymous):
(5d^2+7d-4) /( 40d^2)
the final answer
OpenStudy (anonymous):
Thanks bye