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Mathematics, 21.10.2019 23:00 gemouljr

What is the product?
(7x2)(2x + 5) (*-4x-9)
14x5 – x4 - 46x3 - 58x2 - 20x-45
14x6 – 56x5 – 91x4 – 140x3 - 315x2
14x? - 56x6 – 126x5 + 35x4 - 140x3 - 315x2
0 14x12 - 182x + 35x4 - 455x2

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What is the product?
(7x2)(2x + 5) (*-4x-9)
14x5 – x4 - 46x3 - 58x2 - 20x-45
14x6...

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