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Mathematics
OpenStudy (anonymous):

Find the difference: (6x3 + 8x2 + 9) – (-x2 – 8x – 8)

jimthompson5910 (jim_thompson5910):

(6x^3 + 8x^2 + 9) – (-x^2 – 8x – 8) 6x^3 + 8x^2 + 9 +x^2 + 8x + 8 6x^3 + 9x^2 + 8x + 17 So (6x^3 + 8x^2 + 9) – (-x^2 – 8x – 8) = 6x^3 + 9x^2 + 8x + 17

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