Помогите решить пределы, желательно пошагово :)
lim x->∞ (sqrt(6-2x)-sqrt(x+2))

Преобразовать в косвенную речь. 

1. I have put the washing in the washing-machine, Rose said.

2. We haven't seen Tom for two weeks, she said. 

3. I haven't phoned my uncle since last month,  she says. 

4. He's studying for an exam now, she said .

5. Leaves fall from the trees in autumn, he said .