Question

b(2b-1/b)-b(b-1/b)-c(c+1/c)​

Answer 1

Answer:

b2-c2-1

Step-by-step explanation:

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Answer 2

$\bf{}b \bigg(2b - \frac{1}{b} \bigg) - b\bigg(b - \frac{1}{b} \bigg) - c\bigg(c + \frac{1}{c}\bigg ) \\ \\ = > { \bf{2b}^{2} - 1 - {b}^{2} + \cancel1 - {c}^{2} - \cancel1 } \\ = > \bf{(2 - 1) {b}^{2} - {c}^{2} - 1} \\ = > \bf{ {b}^{2} - {c}^{2} - 1 }$