Answer:
1. 
is a perfect square trinomial
Step-by-step explanation:
2. Perfect square trinomials are algebraic expressions with three terms that are created by multiplying a binomial to itself.
3. I will upload a picture showing my work
U should get the app "photomath" it will help u out alot!!!
I am not sure about the answer but all you have to think about is what is 100 divided by 3
Step 2! The reason for that is the student didnt multiplied (15-2z) with -2. But she should have!
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