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Answer:
960
Step-by-step explanation:
a²+1/a²= 98
a²+1/a²+2= 98+2
(a+1/a)² = 100
a+1/a= 10
a³+1/a³= (a+1/a) (a2+1/a2-2)
= 10(98-2)
= 960
Hope it helps you