What is the product?

(2 x minus 1)(x + 4)

Write the expression in simplified radical form. show all steps and work including any foil method work. (hint: use the conjugate. no decimal answers.) (9-2√3)/(12+√3)

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?