Question 5 • CMS 2026-2027 NC Math 1 CREDIT RECOVERY
First square the binomial: (x − 2)² = x² − 4x + 4, then multiply by −2 to get −2x² + 8x − 8. Also, 3x(x − 12x) = −33x², so the full expression becomes −33x² + 3x² − 2x² + 8x − 8. Multiplying removes the parentheses, and combining like terms gives −32x² + 8x − 8. Thus the expression is a trinomial, not a binomial, and choice D has the wrong x² coefficient.
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