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Audrae_World
Group Title
Use properties of logarithms to expand the loarithmic expressions as much as possile.
log_4 72
1) 7log4 4
2) 4log4 7
3) 4log4 7
4) 16log 7
 2 years ago
 2 years ago
Audrae_World Group Title
Use properties of logarithms to expand the loarithmic expressions as much as possile. log_4 72 1) 7log4 4 2) 4log4 7 3) 4log4 7 4) 16log 7
 2 years ago
 2 years ago

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saifoo.khan Group TitleBest ResponseYou've already chosen the best response.0
\[\log_4 7^{2} \to \log_4 (\frac{1}{49})\to \frac{\log \frac{1}{49}}{\log 4}\]
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.0
are the options you wrote correct? @Audrae_World
 2 years ago

Audrae_World Group TitleBest ResponseYou've already chosen the best response.0
Yes, that's what my book says
 2 years ago

Calcmathlete Group TitleBest ResponseYou've already chosen the best response.1
Isn't it \[\log_{4} 1  \log_{4} 7^{2}\]
 2 years ago

Eyad Group TitleBest ResponseYou've already chosen the best response.0
Its expand not solve @saifoo.khan
 2 years ago

saifoo.khan Group TitleBest ResponseYou've already chosen the best response.0
Yes! im stuck. :/
 2 years ago

Eyad Group TitleBest ResponseYou've already chosen the best response.0
@Audrae_World : Is it \[\log_{4} 7^2\]
 2 years ago

Audrae_World Group TitleBest ResponseYou've already chosen the best response.0
That's the closest I've seen so far, but the one of answer choices says: 4log_4 7^2
 2 years ago

Calcmathlete Group TitleBest ResponseYou've already chosen the best response.1
Are you sure the problem is \[\log_{4} 7^{2}\] ?
 2 years ago

Calcmathlete Group TitleBest ResponseYou've already chosen the best response.1
Oh. I got it. Hold on.
 2 years ago

Calcmathlete Group TitleBest ResponseYou've already chosen the best response.1
\[\log_{4}7^{2} = 2(\log_{4}7) = 2(\log_{7}7/\log_{7}4) = 2(1/\log_{7}2^{2})\] \[2(\log_{7}2^{2}) = 2 * 2(\log_{7}2) = 4\log_{7}2\]
 2 years ago

Calcmathlete Group TitleBest ResponseYou've already chosen the best response.1
Wait. Darn it...
 2 years ago

Eyad Group TitleBest ResponseYou've already chosen the best response.0
LOL @Calcmathlete :whats that !??
 2 years ago

Calcmathlete Group TitleBest ResponseYou've already chosen the best response.1
lol. I got so close!!! But then I realized that it isn't one of the answers...
 2 years ago
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