The age of the members of a family are 46, 48, 21, 12, 15, 8. What is the mean age

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?