1) Because or so:
a) I'm going to study hard ........I want to get good marks
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a .
a. =x3 -x2-4x2+4x+4x-4=(x-1)(x2-4x+4)=(x-1)(x-2)2
b. =x3+x2-6x2-6x+9x+9=(x+1)(x-3)2
c. =x3+x2+7x2+7x+10x+10=(x+1)(x+2)(X+5)
d. =x4+x3+x3+x2+x+1=x3(x+1)+x2(x+1)+x+1=(x+1)(x3+x2+x)=x(x+1)(x2+x+1).Ok
I/ II,
1,community 1,A.An->The
2,culture 2,B.to communicate->communicating
3,northern 3,B.well->better
4,terrace 4,A.What->Which
5,B.collect->collecting
1)I ...doesn't meet.....Paul today, but I........met.... him last Sunday.
(phần 1 bạn không cho từ trong ngoặc nhé)
2) Ellen .........always writes......with her left hand.(always/ to write)
Học tốt nhé
Bài làm
1) Doesn't meet - met
2) Always writes
P/s tham khảo nha
put " must,have to or ought to"to complete the sentence
1. remember that the letter....must.......be sent to her this morning
2. police:you..ought to.......bring your own driving licence when you drive a car
3.we didn't ......have to.......spend too much time taking the taxi
1 because nha bn
I'm going to study hard because i want to get good marks .
Cứ dịch nghĩa là xong ..
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