melly08 melly08

17-10-2016
Mathematics

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simplify 2 (8r2+r)-4r

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mac2016 mac2016

17-10-2016

16r^2+ 2r -4r 16r^2 - 2r 2r ( 8r -1)

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17-10-2016

2(8r2+r)-4r

2(17r)-4r

34r-4r

30r

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