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Mathematics 9 Online
OpenStudy (anonymous):

factor the following : see comment

OpenStudy (anonymous):

\[27a ^{3} - 64\]

OpenStudy (anonymous):

27a^3 = (3a)^3 64 = (4)^3 (3a)^3 - 4^3 = (3a - 4)(9a^2 + 12a + 16)

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