Question

Решитеее срочнооо пожайлуста

Answer 1

Ответ:

$\frac{2}{10a - 15} - \frac{12}{4a {}^{2} - 9} - \frac{1}{10a + 15}$

$\frac{2}{5(2a - 3)} - \frac{12}{4a {}^{2} - 9} - \frac{1}{10a + 15}$

$\frac{2}{5(2a - 3)} - \frac{12}{(2a - 3) \times (2a + 3)} - \frac{1}{10a + 15}$

$\frac{2}{5(2a - 3)} - \frac{12}{(2a - 3) \times (2a + 3)} - \frac{1}{5(2a + 3)}$

$\frac{2(2a + 3) - 60 - (2a - 3)}{5(2a - 3) \times (2a + 3)}$

$\frac{4a + 6 - 60 - (2a - 3)}{5(2a - 3) \times (2a + 3)}$

$\frac{4a + 6 - 60 - 2a + 3}{5(2a - 3) \times (2a + 3)}$

$\frac{4a + 6 - 60 - 2a + 3}{5(4a {}^{2} - 9 )}$

$\frac{2a + 6 - 60 + 3}{5(4a {}^{2} - 9)}$

$\frac{2a - 51}{5(4a {}^{2} - 9) }$

$\frac{2a - 51}{20a {}^{2} - 45 }$