What is the polynomial 3y2 + (y + 7)2 – 15 after it has been fully simplified and written in standard form?

4y2 + 34
3y2 + y + 34
4y2 + 14y + 34
4y4 + 34

ANSWER



EXPLANATION

We want to simplify the polynomial


and write the answer in standard form.

We rewrite the expression to obtain,



We now expand to obtain,



We simplify to get,



The polynomial written in standard form simply means we should write in descending order.

Therefore, the correct answer is option C.