Question

p×(2p-1/p)-2p×(p-1/p)

Answer 1

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Answer 2

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$\: \: \: \: \: \: \: \: \mathtt{p \times (2p - \frac{1}{p}) - 2p \times (p - \frac{1}{p}) } \\ \\ \mathtt{ = \cancel{p} \times( \frac{2p {}^{2} - 1 }{ \cancel{p}} ) - 2 \times \cancel{p}( \frac{p {}^{2} - 1 }{ \cancel{p}} )} \\ \\ \mathtt{ = (2p {}^{2} - 1) - (2p {}^{2} - 2)} \\ \\ \mathtt{ = 2p {}^{2} - 1 - 2p {}^{2} + 2} \\ \\ \mathtt{ = 1}$