Question

СРОЧНО.


Помогите со вторым заданием в обоих вариантах, буду очень благодарна.

Answer 1

1. (a+1+1/(a-1))²=((a+1)(a-1)+1))/(a-1))²=((a²-1+1)/(a-1))²=(a²/(a-1))²=a⁴/(a-1)².
2. a⁴/(a²-2a+1)=a⁴/(a-1)².
3. (a⁴/(a-1)²):(a⁴/(a-1)²)=1.

1. (m+3-m²/(m-3))²=((m²-9-m²)/(m-3))²=(-9/(m-3))²=81/(m-3)².
2. 18/(m²-6x+9)=18/(m-3)².
3. (81/(m-3)²):(18/(m-3)²)=4,5.