Question 1196246
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In this problem, the word "evaluate" means 

    +-----------------------------------------------------------------------+
    |    substitute given value of x into the given formula instead of x    |
    |    and then calculate the obtained numerical expression               |
    +-----------------------------------------------------------------------+


Assignments of this class are traditionally considered as simplest problems of Algebra.


So, in case (1), we do this: we substitute value of 4 instead of x into the formula;

                             we get  g(4) = {{{3^(4+1)-3}}};

                             and we calculate it  {{{3^(4+1)-3}}} = {{{3^5-3}}}  = 

                                                  = 3*3*3*3*3 - 3 = 9*9*3 - 3 = 81*3 - 3 = 243 - 3 = 240.    


                             <U>ANSWER</U>:  g(4) = 240.




    In case (2), we do this: we substitute value of 0 instead of x;

                             we get  j(0) = {{{-2*(3/2)^0}}};

                             we know that any real number in degree 0 equals 1, so {{{(3/2)^0}}} = 1;

                             and we calculate it  {{{-2*1}}} = -2.


                             <U>ANSWER</U>:  j(0) = -2.
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Solved.


Use this mantra every time as you solve similar problems.