Question

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Помогите !!!​

Answer 1

Ответ:

$\frac{4}{a} + \frac{a - 4}{a + 3} = \frac{12 + a ^{2} }{ {a}^{2} + 3a}$

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