Ответ:

[tex]y = \frac{4}{x {}^{2} } + \frac{2}{x + 12}. \\ y = \frac{4(x + 12) + 2( {x}^{2} - 4 }{( {x}^{2} - 4) \times ( x + 12) } . \\ y = \frac{4x + 48 + 2 {x}^{2} - 8 }{( {x}^{2} - 4) \times (x + 12 } . \\ y = \frac{4x + 40 + 2 {x}^{2} }{(x {}^{2} -4) \times (x + 12) } [/tex]

тримай