Question

доведіть тотожність ​

Answer 1

Ответ:

$= (\frac{(x - 4)(x - 4)}{(x + 4)(x - 4)} + \frac{(x + 4)(x + 4)}{ (x + 4)(x - 4)} ) \times \frac{ {x}^{2} - 16}{32} = \\ (\frac{ {x }^{2} - 8x + 16 \times {x}^{2} + 8x + 16 }{ {x}^{2} - 16} ) \times \frac{ {x}^{2} - 16}{32} = \\ ( \frac{2 {x }^{2} + 32}{ {x}^{2} - 16} ) \times \frac{ {x}^{2} - 16 }{32} = \\ \frac{2( {x}^{2} + 16)}{2 \times 16}$

$= \frac{ {x}^{2} + 16 }{16}$

точно задание полное?