Algebramedium · Past Paper

Factorize x^2 - 2 + 1/x^2.

A(x - 1/x)^2
B(x + 1/x)^2
C(x-1)^2/x^2
D(x^2-1)^2

✓ Correct Answer: A(x - 1/x)^2

This is the square of (x - 1/x).

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