Question

. Evaluate using Identities (2x – 1/x)^2

Answer 1

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Answer 2

Answer:

$= > (2x) {}^{2} - 2 \times 2x \times \frac{1}{x} + ( \frac{1}{x} ) {}^{2}$

$= > 4x {}^{2} - 4 + \frac{1}{x {}^{2} }$