Why have you put the denominator twice?
c) Find the rational function with x intercepts at x=2 and x=-2, hole at x=1, vertical asymptote at x=-1 and P(0)=8.
So far I have:
P(x) = a(x-2)(x+2)(x-1)/(x+1)(x-1)
Is this right so far? Now how do I find the value for P(0) = 8?