Is #9x^2 + 24x + 64# a perfect square trinomial, and how do you factor it?
Jun 2, 2015
No, it is not. The perfect square trinomial is:
f(x) = 9x^2 + 24x + 64.
D = d^2 = 576 - 2304 = -1728 < 0,
This trinomial can't be factored because its D is not a perfect square.