Answers

2014-07-15T01:06:12+08:00
Difference of two cubes    ^     a³ - b³    =      (a-b)(a² + ab +b²)     

100x³ - 125y³  =   100x³ - 5³y³ =  ( ∛100 x - 5y )(∛100² x² + ∛100 x5y + 25y²)
c³-27d³ =   c³ - 3³d³  =   ( c-d )(c² +3cd +9d²)
64a³ - 8  =  4³a³ - 2³  =   (4a -2)(16a² + 8a + 4)  
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