x+1/x= - 1 then x^3 equals
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x+1/x=-1
=x+1=-x
=x=-x-1
therefore
x^3=(-x-1)^3
=-x^3-3x^2-3^x-9
=x+1=-x
=x=-x-1
therefore
x^3=(-x-1)^3
=-x^3-3x^2-3^x-9
manojpandapbnwfq:
the answer must be 1
sorry I am wrong
Answered by
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I hope this is Ur answer..
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the question was x+(1 /x) =-1, find x ^3
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