solve this factorization
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8a³ + 1
= ( 2a )³ + 1³
using formula --
a³ + b³ = ( a + b ) ( a² + b² - ab )
(2a + 1 )( 4a² + 1 - 2a ) Ans.
= ( 2a )³ + 1³
using formula --
a³ + b³ = ( a + b ) ( a² + b² - ab )
(2a + 1 )( 4a² + 1 - 2a ) Ans.
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