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16 February, 01:51

Simplify using the horizontal method (2n^2+5n+5) (2n-4)

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  1. 16 February, 03:56
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    (2n - 4) (2n^2 + 5n + 5) =

    2n (2n^2 + 5n + 5) - 4 (2n^2 + 5n + 5) =

    4n^3 + 10n^2 + 10n - 8n^2 - 20n - 20 =

    4n^3 + 2n^2 - 10n - 20 <===
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