Question

a-8ab³ factorise

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Answer 1

Hey mate! here is your answer

= a (1-8b^3)

= a [ (1)^3 - (2b)^3 ]

[ a^3 - b^3 = (a-b) (a^2 + ab + b^2)

= a (1-2b) (1+2b+4b^2) answer.

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