Simplify : (a+b)³ - (a³ - b³)
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Answer:
(a+b) ³-a³-b³?
Solution: (a+b) ³-a³-b³
= a^3+3a^2.b + 3ab^2+b^3 - a^3 - b^3
= 3a^2.b + 3ab^2
= 3ab(a+b). Answer.
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