(Show work for all problems please)
1. If x-2 a factor of f(x)=4x^3-3x^2-8x-4?

2. Is -1 a zero of p(x)=-3x^3-2x+1?

3. How many possible positive negative real zeros are there
for g(x)= 3x^3-2x^2+x+2?

4. Is 1/3 a "possible" real root for p(x)=3x^4-3x^3-3x^2-x+1