Evaluate f(x) = 3x^5 - 100 when x = 4

To evaluate f(x) when x = 4, we substitute x = 4 into the expression for f(x):

f(4) = 3(4)^5 - 100
f(4) = 3(1024) - 100
f(4) = 3072 - 100
f(4) = 2972

Therefore, f(4) = 2972.