What are the possible numbers of positive, negative, and complex zeros of f(x) = −x6 + x5 − x4 + 4x3 − 12x2 + 12?

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio