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OpenStudy (anonymous):
Choose the correct sum of the polynomials (3x3 − 5x − 8) + (5x3 + 7x + 3). ...both 3's after the x are supposed to be cubed
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jimthompson5910 (jim_thompson5910):
(3x^3 - 5x - 8) + (5x^3 + 7x + 3) 3x^3 - 5x - 8 + 5x^3 + 7x + 3 Now combine like terms Ex: 3x^3 and 5x^3 are like terms so 3x^3+5x^3 = 8x^3
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