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3 July, 12:32

Write your answer in descending powers of a. (a 3 - 2a + 5) - (4a 3 - 5a 2 + a - 2)

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  1. 3 July, 12:59
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    A^3 - 4a^3 = - 3a^3

    -2a - a = - 3a

    the answer is - 3a^3+5a^2-3a+5+2=-3a^3+5a^2-3a+7
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