posted by Lauren .
Find the greatest integral upper bound of the zeros for the following function.
f(x) = 4x^3 - 2x^2 - 12x + 1
Find the real zero(s) to the nearest tenth.
f(x) = 2x^3 + x^2 - 1
[I believe the numbers should be around -1 and 0 and 0 and 1.]