SOLUTION: if x = 1/x, evaluate [[(x^2)-4x]/(x+3)]/[(4-x)/x]*[-[(x+3)/x^3]]

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Question 1090877: if x = 1/x, evaluate [[(x^2)-4x]/(x+3)]/[(4-x)/x]*[-[(x+3)/x^3]]
Answer by ikleyn(52925) About Me  (Show Source):
You can put this solution on YOUR website!
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If  x = 1%2Fx  then  x%5E2 = 1,  which implies  x= 1  or  x= -1.


So, to answer the problem's question,  substitute these values of x into the given expression and evaluate.