The factors of a-27ab^3 are?
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Step-by-step explanation:
a - 27ab^3
a ( 1 - 27b^3 )
a ( 1 - (3b)^3 )
a ( 1^3 - (3b)^3)
a ( 1- 3b ) (1^2 + 1×3b + (3b)^2)
a ( 1 - 3b ) (1 + 3b + 9b^2 )
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