The graph of which inequality has open circles on -16 and 4 with a line segment between them?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x

(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.