8) List all the possible rational roots of 2x' + 3x' -4x+8-0. P: q: possible roots: 9) Divide (2x' -5x3 + 7x+1) by (x-5) using long division. 10) Divide (x' - x-5) by (x+4) using synthetic division. 1 1) Use the remainder theorem to find the remainder of (x -5x] +6x-3)+(x-1). State whether the binomial is a factor of the polynomial