Kylie explained that (-4x+9)2 will result in a difference of squares because (-4x+9)-(-4x)+(9)-16x+81. Which statement best describes Kylie's explanation?Kylie is correct.Kylie correctly understood that it

Kylie explained that (-4x+9)2 will result in a difference of squares because (-4x+9)²-(-4x)²+(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.Kylie determined the product correctly, but she did not understand that this is a perfect square trinomial.