I have log4(x^2 - 9) - log4(x + 3) = 3
I get 4^3 = (x^2 - 9) / (x + 3 )
and then 64 = (x - 3)
x = 67
Correct?
Yep !
But don't make this mistake :
Okay, here are the steps, hope you'll know how to do further exercises later
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from the property a log(b)=log(b^a), this is :
use the rule and you'll get :
this is the main step of the leap
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I've just seen a better way to do it :