anonymous
  • anonymous
simplify the square root of 8n-27 devided by 4-n
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
kstatefan, do you know how to divide polynomials involving variables yet or no?
myininaya
  • myininaya
-8-27/(4-n)
anonymous
  • anonymous
I can show you if you need me to kstatefan. Just trying to assess how much I should go into detail

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myininaya
  • myininaya
what is 8n/(-n) simplify to
anonymous
  • anonymous
-8 right?
myininaya
  • myininaya
yes
myininaya
  • myininaya
put that where the quotient goes and then multiply by the divisor to figure out what you need to subtract
anonymous
  • anonymous
k
myininaya
  • myininaya
oops i got the wrong remainder above
myininaya
  • myininaya
-8+5/(4-n)
myininaya
  • myininaya
so we have (8n-27)-(8n-32) which is ...
anonymous
  • anonymous
this is exponential and logarithmic functions we arent doing this right
myininaya
  • myininaya
oh thats the sqrt(8n-27)
myininaya
  • myininaya
i didnt see the sqrt sorry
myininaya
  • myininaya
so we aren't dividing. I would say it is already simplified
myininaya
  • myininaya
how do you use log or exponentiation here
myininaya
  • myininaya
exponential*
anonymous
  • anonymous
and i said it wrong the funtion is actually\[\sqrt{(8^{n}-27)\div (4^{-n})}\]
anonymous
  • anonymous
and i have no idea
myininaya
  • myininaya
=\[\sqrt{8^n*4^n-27(4^n)}=\sqrt{32^n-27(4^n)}\]
myininaya
  • myininaya
\[\sqrt{4^n}*\sqrt{(8^n-27})=2^n*\sqrt{(8^n-27)} \]

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