help me with this please

Question

Enter a recursive rule and an explicit rule for the geometric sequence, then find the next three terms.

3, 12, 48,

The recursive rule is f (1)= _____ and f (n) =F( ) - ________

The explicit rule is f (n) = _______

The next three terms are _____ ,________ and _______

.

Answer 1

recursive: f(1) = 3 and f(n) = 4*f(n-1)

explicit: f(n) = 3 * 4^n-1

Next 3 terms are 192, 768, 3072