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Octavio
Mathematics
2 November, 03:42
What is (7r - 1) (8r^2 + 8r + 1)
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Jaylen George
2 November, 04:06
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(7r - 1) (8r² + 8r + 1)
7r * (8r² + 8r + 1) - 1 * (8r² + 8r + 1)
56r³ + 56r² + 7r - 8r² - 8r - 1
56r³ + 56r² - 8r² + 7r - 8r - 1
56r³ + 48r² - 8r² - r - 1
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