1. Rational Zero Theorem Rational Zero Th’m: If the polynomial
has integer coefficients, then every rational zero of f is of the form p/q where p and q have no common factors other than 1 and p is a factor of the constant a0 and q is a factor of the leading coefficient an.
Ex 1: Find the possible rational zeros of

2. Ex 2: Find the rational zeros of x3 – 4x2 – 2x + 8 = 0.
Ex 3: Find the rational roots of x3 + x2 – 3x - 3 = 0.

3. Ex 4: Find the rational zeros of f (x) = x3 + x + 1.
No rational zeros.
Ex 5: Find the rational zeros of
f (x) = 2x3 + 3x2 - 8x + 3.
Ex 6: Find the real zeros of
f (x) = 10x3 - 15x2 - 16x + 12.

4. Practice Assignment:
Section 2.3B (pg 124) #