Answer:
Part A: 24
Part B: 216
Step-by-step explanation:
Part A:
[tex]\frac{g(2)-g(1)}{2-1}[/tex] ----->>> [tex]\frac{4(3)^{2} -4(3)^{1} }{1}[/tex]
[tex]\frac{36-12}{1}[/tex] = 24
Part B:
[tex]\frac{g(4)-g(3)}{4-3}[/tex] ------>>> [tex]\frac{4(3)^{4} 4(3)^{3} }{1}[/tex]
[tex]\frac{324-108}{1}[/tex]= 216
hope this helps you a bit!! :)