Kylie explained that (-4x+9)^2 will result in a difference of squares because (-4x+9)^2 (-4x+9)^2 =(-4x)^2+(9)^2=16x^2+81

Kylie did not understand that this is a perfect square trinomial , and she did not determined the product correctly.

Step-by-step explanation:

Perfect square trinomial is given by:

As per the statement:

Kylie explained that will result in a difference of squares i.e,

Using perfect square trinomial on is:

The correct product would be

Therefore, Kylie did not understand that this is a perfect square trinomial , and she did not determined the product correctly.

2.   2 3/5.

3.   2 1/2.

step-by-step explanation:

6 - 3 2/5

= 6 -   17/5

= 30/5 - 17/5

= 13/5

= 2 3/5 (answer).

5 1/4 - 2 3/4

= 21/4 - 11/4

= 10/4

= 2 1/2 (answer).

answ9x x 3=

step-by-step explanation: