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LekaFEV [45]
3 years ago
8

(9x^4-3x^3+4x^2+5x+7) + (11x^4-4x^2-11x-9)

Mathematics
1 answer:
icang [17]3 years ago
5 0

Answer:

20x^4 - 3x^3 - 6x - 2

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