I need help with this

Easy points boii. read it. ya. fresh

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

(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.