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1) (30x^3– 49x^3+ 7x) + (50x^3– 60x^2- 75)
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1 Answer

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Answer:

31x³-60x²+7x-75

Explanation:

(30x³-49x³+7x)+(50x³-60x²-75)

(-19x³+7x)+(50x³-60x²-75)

-19x³+50x³+7x-60x²-75

31x³-60x²+7x-75

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