[" 8.If "x^(2)+(1)/(x^(2))=7" and "x!=0"...

[" 8.If "x^(2)+(1)/(x^(2))=7" and "x!=0" ; find the value of: "],[7x^(3)+8x-(7)/(x^(3))=(8)/(x)]

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If x^(2) + (1)/(x^(2))= 7 and x ne 0 , find the value of : 7x^(3) + 8x- (7)/(x^(3))- (8)/(x)

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