Question

Simplify - (6-5/y)² using suitable identity.​

Answer 1

$(6 - \frac{5}{y} ) {}^{2}$

using

(a - b)² = a² + b² - 2ab

$6 {}^{2} + (\frac{5}{y} ) {}^{2} - 2(6)( \frac{5}{y} )$

$36 + \frac{25}{ {y}^{2} } - \frac{60}{y}$