Multiple Choice

A quality control analyst is simplifying a material stress formula represented by the polynomial 2n28n422n^2 - 8n - 42. After factoring out the Greatest Common Factor (GCF) of 2, the analyst is left with the trinomial n24n21n^2 - 4n - 21. According to the standard factoring checklist, what is the required sum of the two numerical factors needed to complete the simplification?

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Updated 2026-04-20

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