What is the factored form of 7x2 + 2x - 5? (7x + 3)(x - 1)
(7x + 2)(x + 1)
(7x - 5)(x + 1)
(7x + 1)(x - 1)

Evaluate cos2θ for cosθ = square root of 3/2

(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.

What is the slope of the line (-7,2) (4,6)