plz solve this fast
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Answer:
a³-b³=392
Step-by-step explanation:
a-b=8
(a-b)³=(8)³
a³-b³-3ab(a-b)=512
a³-b³-3(5)(8)=512
a³-b³-120=512
a³-b³=512-120
a³-b³=392
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Answer:
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