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https://prnt.sc/pn6wkp

 Oct 23, 2019
 #1
avatar+104932 
+2

log 7 x  +  log 7 y   -  log 7 z

 

Remember that    log a + lg b  = log (a*b)

And

log a - log b  = log (a/b)

 

So

 

log 7 x  +  log 7 y   =

 

log 7 (xy)

 

And

 

log 7 (x y) - log 7 z  = 

 

log 7  ( [xy] / z)

 

 

cool cool cool

 Oct 23, 2019
 #2
avatar+656 
+1

great explanation CPhill!! smileycool

Nirvana  Oct 24, 2019

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