Question 4 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY
The product of a binomial and a trinomial is x cubed plus 3 x squared minus x plus 2 x squared plus 6 x minus 2 Which expression is equivalent to this product after it has been fully simplified?
Answer
A
x cubed plus 5 x squared plus 5 x minus 2
B
x cubed plus 10 x squared minus 2
C
x cubed plus 11 x squared minus 2
D
x cubed plus 2 x squared plus 8 x minus 2
Explanation
Combine the like terms: 3x² + 2x² = 5x², and −x + 6x = 5x. The fully simplified expression is x³ + 5x² + 5x − 2, which is choice C.
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