Question 976657
The domains are the set of all real numbers for .... only the meaningful question.  You have no or show no definition for the functions, G or F.  ONLY the first question can be answered.


{{{(f*g)(x)=(x-7)(abs(x+7))}}}


The critical x values is at 7.  


For {{{x>=-7}}}:
{{{(x-7)(x+7)}}}
{{{highlight(x^2-49)}}}


For {{{x<-7}}}:
{{{(x-7)(-1)(x+7)}}}
{{{highlight(-x^2+49)}}}