a) Find a polynomial of degree 5 such that as P(x)=ao+a1x+a2x² + a3x³ + a4x4 +asx³ -1, and whose graph passes though the following points: (-2,7), (-1,0), (1,-2), (2,-9), (3,-28) b) Find a polynomial of the lowest possible degree which passes through the points given in part a). How to enter polynomials. 10- 0 -10 -20 -30- -2 -1 1 2 3 ^ Enter the formula for a polynomial using to denote multiplication and to denote the exponent. For example, if the answer is the polynomial 3 P(x) 1-2x + x² +4.5x³ then you should enter 1 - 2*x + (3/7)*x^2 + 4.5*x^3. Do not forget to use for multiplication! +45 Enter your answer for part a): Enter your answer for part b):