Find the sum of these polynomials. (x2 – x + 8) + (10x2 + 7) = a. 11x2 – x + 15 b. 10x2 – x + 1 c. 10x2 – x + 15 d. 11x2 – x + 1

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.