[tex]please \: solve \: it.[/tex]
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a²
Step-by-step explanation:
(a-1/a) ( a⁴+1/a⁴)
=a(a⁴+1/a⁴)- 1/a(a⁴+1/a⁴)
=a⁵+1/a³ -- a³-1/a³
=a²