Question

Выполнить действие : 2/x + x-2/x+7​

Answer 1

$\frac{2}{x} + \frac{x - 2}{x + 7} = \frac{2(x + 7) + x(x - 2)}{x(x - 7)} = \frac{2x + 14 + x^{2} - 2x}{x^{2} - 7} = \frac{ - 14 + {x}^{2} }{ {x}^{2} - 7 }$