Question

1/a+2+1/a-2-4/a²-4 памагите пж срочнооооо

Answer 1

Ответ:

$\frac{1}{a} + 2 + \frac{1}{a} - 2 - \frac{4}{a {}^{2} - 4} = \frac{2}{a} - \frac{4}{a {}^{2} - 4} = \frac{2(a {}^{2} - 4) - 4a}{a(a {}^{2} - 4) } = \frac{2a {}^{2} - 4a - 8 }{a {}^{3} - 4a }$