simplify a³-1/a³-2a+2/a
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Step-by-step explanation:
a³-1/a³-2a+2/a = (a³-1/a³)-2(a-1/a)
= [ (a-1/a) (a²+1/a²+1) ] - 2 (a-1/a)
= (a-1/a) (a²+1/a²+1-2)
= (a-1/a) (a²+1/a²-1)
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