Which products result in a difference of squares or a perfect square trinomial? Check all that apply. (5x+3)(5r-3)
(Tx + 4)(7x + 4)
(2x + 1)(x + 2)
(4x-6)(x+8)
(x-9)(x-9)
0 (-3r-6)(-3r+6)

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

Question 5 spring semester final exam math evaluate

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x