please its urgent please give the answer
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Solve by formula of
(a+b)³=a³+b³+3a²b+3ab²
(a-b)³= a³-b³-3a²b+3ab²
(a+b)³=a³+b³+3a²b+3ab²
(a-b)³= a³-b³-3a²b+3ab²
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thnks
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