Question

Factorise: a^3 – 8b^3

Answer 1

Answer:

(a-2b)(a^2+4b^2+2ab)

Step-by-step explanation:

a^3 – 8b^3

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

(a-2b)(a^2+4b^2+2ab)

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