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Answer all the questions. QUESTION 1 Given the polynomial of P(x)= (x* +ax-1)(2x-b)+7, where a and b are constants. (a) If P(1) =12 and P(-1)=-18. Find the values of a and b. | 4 marks | (C2, CLOI, MQF LODI) (b) Show that (2x +1) is a factor of Praja lasi Johor [ 2 marks | (C2, CLO1, MOF LODI) (c) Express P(x) as a product of three linear factors. [ 4 marks | KMJ (C3, CLO3, MOF LOD6) QUESTION 2 Keilmuan Menjana Jatidini Given 1-5x+x Bx + C :A+. x(x-3) x(x-3) (a) Find the values of A, Band C. [ 3 marks | (C2, CLOI, MOF LODI) (b) Hence, express I-5x+ x- as partial fractions. xx-3) [ 5 marks ] (C2, CLO3, MQF LOD6)