Question

2а-6/а²-6а+9 скоротить дриб​

Answer 1

Ответ:

$\frac{2a-6}{a^2-6a+9}=\frac{2(a-3)}{(a-3)^2}=\frac{2}{a-3}$

Answer 2

Ответ:

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