Kyle explained that (-+*+91 will result in a difference of squares because (-4x+9)2-(-4)*+(9)2-16x2+81. Which statement best describes Kylie's explanation?
Kylie is correct
Kylie correctly understood that it is a difference of squares, but she did not determine the product correctly,
Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.
Kyle determined the product correctly, but she did not understand that this is a perfect square trinomial.