Question 2 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY
What is the polynomial 3 y squared plus open paren y plus 7 close paren squared minus 15 after it has been fully simplified and written in standard form?
Answer
A
4 y to the 4th power plus 34
B
4 y squared plus 14 y plus 34
C
4 y squared plus 34
D
3 y squared plus y plus 34
Explanation
Expand the square: (y + 7)² = y² + 14y + 49. Then combine like terms: 3y² + y² + 14y + 49 − 15 = 4y² + 14y + 34, which is choice C.
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