IF x - 2/x =3 , find the value of x^3 -8/x^3
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answer for the given problem is 45
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when X=3
3^3-8/3^3
=27-8/27
=729-8/27
=721/27
=103
when X=X-2
it means X=2( the sign changes because it is a rule of integer when the number inside a polynomial is negative when it comes down it will become positive and when the no is positive in the same way it will become negative)
=2^3-8/2^3
=8-8/8
=0
therefore, when the x value is 2 the value of the polynomial is 0.
and when value of x is 3 then the value of the polynomial is 103
hope ..... this ans will help uu...
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