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27 + 8x3 in the form of factors is :
(3 + 2x)(9 + 6x + 4x2)
(3 - 2x)(9 + 6x + 4x2)
(3 + 2x)(9 - 6x + 4x2)
(3 - 2x)(9 - 6x + 4x2)
8a3 + 1 in the form of factors is :
(2a + 1)(4a2 - 2a + 1)
(2a - 1)(4a2 - 2a + 1)
(2a + 1)(4a2 + 2a + 1)
(2a - 1)(4a2 + 2a + 1)
Factorise :
64 - a3b3
a6 + 27b3