He ,together with his friends hardly (get) gets bad marks.

1. I divided the sweets among several boy.

2. She doesn't like quizzes because her common knowledge (kiến thức) is so poor (nghèo nàn) .

Để \(P\in Z\) thì \(x-2⋮x+1\)

=> \(x-2-\left(x+1\right)⋮x+1\)

=> \(x-2-x-1⋮x-1\)

=> \(\left(x-x\right)+\left(2-1\right)⋮x-1\)

=> \(1⋮x-1\)

=> \(x-1\inƯ\left(1\right)=\left\{1;-1\right\}\)

=> \(x\in\left\{2;0\right\}\)

Vậy \(x\in\left\{0;2\right\}\)

Bạn giỏi lắm !

Kì II cố gắng hơn nữa nhé!!

1/ Lan is the most intelligent (student) in my class .

2/ He is the happiest person .

3/ Football is the most interesting (sport) .

4/ Have you got a bigger hat than this (one) ?

5/ Everest is the highest mountain in the world .

6/ Minh is the fattest (student) in my class .

7/ No one in our town is richer than Mr. Ron .

8/ Lan is the best (student) at English in my group .

I'm tired. I'd like to sit down.

^-^ chúc bạn học tốt!!