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Perform the indicated operation. (7x4 + 11x3 – x2 – 8x + 6) – (-12x4 + 9x2 – 15) A) -5x4 + 11x3 + 8x2 – 8x – 9 B) 19x4 + 11x3 – 10x2 – 8x + 21 C) 5x4 + 2x3 + 14x2 – 8x + 6 D) -19x4 – 2x3 – 8x2 – x + 9

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joseaaronlara

Answer:

The answer to your question is: Letter B

Explanation:

                       (7x⁴ + 11x³ – x² – 8x + 6) – (-12x⁴ + 9x² – 15)

                       7x⁴ + 11x³ – x² – 8x + 6  + 12x⁴ -  9x² + 15

                       19x⁴ + 11x³ - 10x² - 8x + 21

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