Simplify x+1/x-1 -x-1/x+1 +4/x²-1

asked Jan 27, 2021 53.7k views

3 votes

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1 vote

Answer:

4-x^2/x^2

Explanation:

x+1/x -1 - x - 1/x + 1 + 4/x^2 - 1

1/x - 1 - 1/x + 1 + 4/x^2 - 1

-1 + 1 + 4/x^2 - 1

4/x^2 - 1

4 - x^2/x^2

Andrea Dusza answered Jan 31, 2021

5.1k points

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