SOLUTION: Simplify this rational expression.
x^-3-x/x^-2-1
Thank you
Algebra.Com
Question 311918: Simplify this rational expression.
x^-3-x/x^-2-1
Thank you
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Simplify this rational expression.
x^-3-x/x^-2-1
----
[(1-x^4)/x^3] / [(1-x^2)/x^2]
---
Invert and multiply:
[(1-x^4)/x^3] * [x^2/(1-x^2)]
----
Cancel to get:
= [(1+x^2)/x]
===============
Cheers,
Stan H.
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