Question

Сократите дробь:
$frac{4- a^{2} }{8-4a}$

Answer 1

(4-а²)/(8-4а) = (2²-а²)/(4(2-а)) = ((2-а)(2+а)) / 4(2-а) = (2+а) / 4

Answer 2

Спасбо

Answer 3

Спасибо*