Question

Скоротіть дріб:
3x-6/x2-4
ab+3a/b²+6b+9

Answer 1

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

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