Find each sum.(3n2 – 5n + 6) + (–8n2 – 3n – 2) =

Combine like terms in the two polynomials: for the squared terms, 3n² − 8n² = −5n²; for the n terms, −5n − 3n = −8n; and for the constants, 6 − 2 = 4. The sum is −5n² − 8n + 4, which is choice C.

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