Can someone please help me?

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Someone answer this asap for the first five terms of a sequence are shown. 5, 11, 23, 47, 95, . . which recursive function defines the nth term in the sequence for n > 1? a. f(n) = f(n - 1) + 6 b) f(n) = f(n - 1) + 48 c) f(n) = 3 • f(n - 1) + 1 d) f(n) = 3 • f(n - 1) - 4

If the tip varies directly with the number of guest which equation represents between the tip,t, and the number of guest,g?