Question

Ayuda me lo pueden explicar paso a paso
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Answer 1

Respuesta:

x / (x + 1)²

Explicación paso a paso:

[1 - 2 / (x + 1)] / [x - 1 / x] =

[(x + 1 - 2) / (x + 1)] / [(x² - 1) / x] =

[(x - 1) / (x + 1)] / [(x - 1)(x + 1) / x] =

[1 / (x + 1)] / [(x + 1) / x] = x / (x + 1)²