Which products result in a perfect square trinomial? Select three options.

Question

(negative x + 9)(negative x minus 9)
(x y + x)(x y + x)
(2 x minus 3)(negative 3 + 2 x)
(16 minus x squared)(x squared minus 16)
(4 y squared + 25)(25 + 4 y squared)

Answer 1

(2 x - 3)(-3 + 2 x)
(4 y^2 + 25)(25 + 4 y^2)
(x y + x)(x y + x)