5^(x + 5) = 9^x solve choices attached
I don't get any of those multiple choices !!... what have you erased ??
i ws tryna draw an arrow
forst in black then failed then in blue and failed
i just need to get that equation into log format or something
Hey there, yes, you do need to put it into LOG
So, what do you need to do to bring down the exponent x?
i think so a 10?
Cheeto, try to log both sides to bring the exponents
If you were to log both sides, it would turn out as: 5LOG(x + 5) = 9LOGx
I think kropot is cooking a better explanation...
\[5^{(x+5)}=9^{x}\] \[5^{x} \times 5^{5}=9^{x}\] \[5^{5}=(9\div5)^{x}\] Taking logs to base e of both sides: \[\ln 5^{5}=x(\ln 9-\ln 5)\] \[x=(5\times \ln 5)\div(\ln 9-\ln 5)\]
thank you guys i got it
You're welcome. The correct choice is of course 13.69.
yes i got that now can you help me log format one more?
I'll try!
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