21-11-2015
Mathematics

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5-4c+8a-4•(5a+c+2d)+6d=

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21-11-2015

5 - 4c + 8a - 4 * (5a + c + 2d) + 6d = 5 - 4c + 8a - 20a - 4c - 8d = 5 - 8c - 12a - 8d

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