A perfect square trinomial is the result in algebraic form which is obtained by solving the squared binomial expression. Kylie did not understand that this is a perfect square trinomial and she did not determine the product correctly. Thus the option C is the correct option.
Given information-
The expression for the given problem is,

<h3>Perfect square trinomial</h3>
A perfect square trinomial is the result in algebraic form which is obtained by solving the squared binomial expression.
The perfect square trinomial can be given as,

The given expression can be solved as,

Hence Kylie did not understand that this is a perfect square trinomial and she did not determine the product correctly. Thus the option C is the correct option.
Learn more about the perfect square trinomial here;
brainly.com/question/88561
Answer:
4 hours
Step-by-step explanation:
28 divided by 7 is 4
There is no other equations
Dilation since then the lengths are changed. The image would then be only similar; not congruent.