Solve log(base4)X + log(base4) (X+6) <2

  • Thread starter Thread starter VVVS
  • Start date Start date
Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
2 replies · 2K views
VVVS
Messages
2
Reaction score
0

Homework Statement


Solve log(base4)X + log(base4) (X+6) <2


Homework Equations


log(base4)X + log(base4) (X+6) =2 comes out to x=-8 and X=2


The Attempt at a Solution


I can't seem to figure out what steps I should even take to answer this inequality.
 
Physics news on Phys.org


this property should be useful:
[tex]log_a (b*c) = log_a b + log_a c[/tex]
applying this to your inequality and changing 2 into [tex]log_4 16[/tex] you'll get something that can be easily transferred into inequality containing quadratic function, which you'll surely solve on your own
 


VVVS said:

Homework Statement


Solve log(base4)X + log(base4) (X+6) <2


Homework Equations


log(base4)X + log(base4) (X+6) =2 comes out to x=-8 and X=2
One relevant equation here would be logaA + logaB = logaAB.
Another is logab = c <==> b = ac.
The equation you have here is part of your work, not really a relevant equation.
VVVS said:

The Attempt at a Solution


I can't seem to figure out what steps I should even take to answer this inequality.

First off, you should determine which values of x are going to be allowed as potential solutions. Then, see if the equations I added might be of some help to you.