Answer all of the following.
1. A polynomial P(x)= 2x3 +3x2-2x-3
(a) Find P(2), P(-1)
(b) Determine if x-1 is a factor.
2. Given that a polynomial P(x) = x3 +2x2 -7x+4.
(a) If x+4 is a factor of P(x), find the other two factors,
(b) Find the set of values of x for which P(x)>0
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