Use the rational zeros theorem to find all the real zeros

Question

Please help thank you very much

1. Solve the inequality algebraically x+7/x-8 greater than or equal to 1
2. Use the rational zeros theorem to find all the real zeros of the polynomial function. Use the zeros to factor f over the real numbers f(x)=2x^3-4x^2-22x+44
3. Use the given zero to find the remaining zeros of the function h(x)=2x^4+3x^3+70x^2+108x-72; zero: -6i