What’s the function form of 8x + 2y =-4 ? ?

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

(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.

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).