I have final in math and need help with different kinds of problems

Write a polynomial function that has the following zeros and leading coefficent 1.
1) -1,6,2

Solve using synthetic dividision
2) (x^3-x^2-2x-12)/ (x-3)

Solve the inequalities:
3) 4x^4+4>(equal2) 17x^2
4) x^3-5x^2-22x+56<0

Write a polynomial function that has the following zeros and leading coefficent 1.
1) -1,6,2

If -1,6, and 2 are zeros, then that must mean that (x+1), (x-6), and (x-2) are factors of the polynomial.

so you have (x+1)(x-6)(x-2)

(x+1)(x² -2x-6x+12)

(x+1)(x² -8x+12)

x³ -8x² +12x+x² -8x+12

x³-7x² +4x+12