(2a³-b³)³-b³ please anwer hurry step by step answers
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(2a³-b³)³ - b³
=(2a³)³-3*(2a³)²*b³+3*2a³*(b³)²-(b³)³ -b³
=8a⁹-12a⁶b³+6a³b⁶-b⁹-b³
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