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solve. What does w equal

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1 Answer

log7(w2) + 2log7(5w) = 2
 
2log7w + 2log7(5w)=2
 
log7w + log7(5w)=1
 
log7(5w2)=1
 
5w2=7
 
w=±√(7/5)

Comments

Hi Roman.
 
log(a) + log (b) = log(ab), not log (a+b).
 
v/r, Phil
You are right. I'm fixing it.

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