Let f and g be functions. (a) The function (f + g)(x) is defined for all values of x that are in the domain(s) of ____________.  (b) The function (fg)(x) is defined for all values of x that are in the domain(s) of __________. (c) The function (f/g)(x) is defined for all values of x that are in the domain(s) of__________
       
      
                
     
    
    
    
    1  answer:
            
              
Answer: 
a) for all values of x that are in the domains of f and g.
b) for all values of x that are in the domains of f and g.
c) for all values of x that are in the domains of f and g with g(x)≠0
Step-by-step explanation: 
a) By definition (f+g)(x)=f(x)+g(x). Then x must be in the domain of f and g.
b) By definition (fg)(x)=f(x)g(x).  Then x must be in the domain of f and g.
c) By definition (f/g)(x)=f(x)/g(x).  Then x must be in the domain of f and g and g(x) must be different of 0.
 
                                
             
         	
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u^2 +7u -8=0  where u = 3x+2
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