Use the sum-of-two-cubes or the difference-of-two-cubes pattern to factor the following.1 - 27a 3
A. ( 1 - 3a )( 1 - 6a + 9a 2 )
B. ( 1 - 3a )( 1 - 3a + 9a 2 )
C. ( 1 - 3a )( 1 + 3a + 9a 2 )
D. ( 1 + 3a )( 1 + 3a + 9a 2 )
E. ( 1 - 3a )( 1 + 6a + 9a 2 )
Answer: C
Mathematics
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A. 
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