March 26th, 2017, 07:31 AM  #1 
Newbie Joined: Aug 2016 From: Brasil Posts: 17 Thanks: 0  Compound domain function
Determine the domain of the following compound function. Hello everyone, I started to solve this question, but I could not evolve from this point. How is the domain of this composite function? How can I simplify or finalize this function? Thank you very much in advance 
March 26th, 2017, 07:31 AM  #2 
Newbie Joined: Aug 2016 From: Brasil Posts: 17 Thanks: 0  
March 26th, 2017, 08:13 AM  #3 
Math Team Joined: Jul 2011 From: Texas Posts: 2,549 Thanks: 1259 
what happened to the $\color{red}{3x}$ term?

March 26th, 2017, 08:42 AM  #4 
Newbie Joined: Aug 2016 From: Brasil Posts: 17 Thanks: 0 
That's right, I forgot to put them, sorry So how can I solve this question? 
March 26th, 2017, 08:43 AM  #5 
Newbie Joined: Aug 2016 From: Brasil Posts: 17 Thanks: 0  

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