16) (y+1)(y-1)/(-y-1)

Question

Вынесем \( -1 \) из знаменателя: \( -y-1 = -(y+1) \).

\( \frac{(y+1)(y-1)}{-(y+1)} = \frac{y-1}{-1} = -(y-1) = 1-y \)

Ответ: 1-y

Accepted Answer

Вынесем \( -1 \) из знаменателя: \( -y-1 = -(y+1) \).

\( \frac{(y+1)(y-1)}{-(y+1)} = \frac{y-1}{-1} = -(y-1) = 1-y \)

Ответ: 1-y