Please HELPPP For a given geometric series, a2 =128 and a7=1/8, find S.
30 points and brainliest to whoever has the correct answer!!!

47.28 or 47.2857143

step-by-step explanation:

you just divide 331 by 7 and you get that answer. ( i think so tho)

b). 4320 have a nice day

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb

i'm not really sure how to answer that

step-by-step explanation: