tuscany44 tuscany44

25-06-2014
Mathematics

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Multiply and simplify.
(a - 2b) (2a - b) (a + 2b)

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konrad509 konrad509

25-06-2014

[tex](a - 2b) (2a - b) (a + 2b)=\\ (2a-b)(a^2-4b^2)=\\ 2a^3-8ab^2-a^2b+4b^3=\\ 2a^3-a^2b-8ab^2+4b^3[/tex]

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