Find(f+g)(x) if f(x)=3x+5 and g(x)= -2x^2-5x=3a. (f+g(x)=-2x^2+8x+8b. (f+g)(x)=-2x^2-2x+8c. (f+g)(x)=-4x+8d. (f+g)(x)=-2x+8

(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.