3. Question Details Find all rational zeros of the polynomial. (Enter your answers as a comma-separated list. Enter all answers including repetitions.) P(x) = 2x3 + 11x2 +12x - 9 X = Write the polynomial in factored form. P(X) = 4. Question Details Find integers that are upper and lower bounds for the real zeros of the polynomial. (Be sure the lower bound is the largest possible lower bound and the upper bound is the smallest possible upper bound.) P(x) = x3 - 3x2 + 4 lower bound upper bound