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16 November, 23:47

Multiply r^2 + 7r + 10/3 by 3r - 30/r^2 - 5r - 50

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  1. 17 November, 00:01
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    (r^2 + 7r + 10/3) (-2r - 30/r^2 - 50) = - 2r^3 - 30 - 50r^2 - 14r^2 - 210/r - 350r - 20/3 - 100/r^2 - 500/3 = - 2r^3 - 64r^2 - 350r - 601/3 - 210/r - 100/r^2
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