Q6. Simplify
(a - b)³ (a³ - b³)
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Answer:
3ab(a+b)
Step-by-step explanation:
(a+b) ³-a³-b³
= a^3+b^3 + 3a^2b + 3ab^2 - a^3 -b^3 [from (1)]
= 3a^2b + 3ab^2
= 3ab(a+b)
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