The given expression is a perfect square trinomial.
<h3>
How to classify the given expression?</h3>
Here we have the expression:

Notice that we can rewrite it as:

Then we can see that inside the parenthesis we have a difference of squares, but it is squared, so if we define:

We will have:

Which is in fact, a perfect square trinomial.
If you want to learn more about perfect squares:
brainly.com/question/1538726
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Answer:
Yes it is
Step-by-step explanation:
Answer:#9- Answer: -7
#10- Answer: 0
#11- Answer: 4
#12- Answer: -4
Step-by-step explanation:
−3(10−(3−8)+4−2²-−3(4−9))
=−3(10−(−5)+4−2²-−3(4−9))
=−3(15+4−2²-−3(4−9))
=−3(19−2²-−3(4−9))
=−3(19−4−3(4−9))
=−3(15−3(4−9))
=−3(15−(3)(−5))
=−3(15−(−15))
=(−3)(30)
=−90
The answer is D (i have to type at least 20 letters soooooooooo)