1. Build a table for f1 (x) at k= 3. 2. Represent the function f1(x) as a polynomial modulo 3.
3. Construct a table for f2(x) and represent it in the first and third
the main form, for k= 3.
4. Represent a polynomial modulo 5 f3(x).
5.Represent a polynomial modulo 3 f4(x, y).

Add, subtract, multiply, or divide as indicated. list any restrictions for the variable(s) and simplify the answers when possible. 1) x-2 / x+5 + 3x / 2x-1 2) x+6 / x-6 - x^2 / x+6 3) x+9 / x-4 + x+2 / x^2-11x+28 4) x / x^2-64 + 11 / 2x^2+11x-40 5) 5 / x + 11 / x-3 - x-4 / x^2+2x-15