The simplified expression is 
Explanation:
The expression that we have in this problem is

We want to simplify this expression: in order to do so, we apply the rule to solve the square of a binomial:

Where in our expression, we have:

So, the various terms are:

Therefore, the final expression becomes

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The correct answer to this question is letter ". C) The comma attempts to separate a compound predicate."
The first part of the sentence is the predicate, so it's not trying to separate a subject.
"Then skylights that were made of aluminum siding" isn't a sentence, so it's not an independent clause."
The verbs are :
There is the answer hope it helped
Answer:
able
Explanation:
When the root has other forms built on the letter a, the -able form is used. When the root ends in hard c or g, -able is used. When the word has an immediate -tion form, -ible is used. When the root ends in ns, miss, or soft c or g, -ible is used.