factorise a3 + 8b3 - 2a – 4
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Step-by-step explanation:
a3 + 8b3 - 2a – 4
a^3 + (2b)^3 - 2 (a - 2)
Ans : (a + 2b) (a^2 - 2ab + 2b^2 ) - 2 (a-2)
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