Phân tích đa thức sau thành nhân tử .
ab(b - a) - bc(b - c) - ac(c - a)
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Team sports are sometimes called...................... sports.
A. compete B. competition C. competitor D. competitive
Hok tốt
Last summer, I..........................fishing with my uncle in the afternoon.
A. go B. went C. goes D. going
I watching football matches, but I am not very good .......................... playing football.
A at B in C .on D. for
Team sports are sometimes called...................... sports.
A. compete B. competition C. competitor D. competitive
.............................to a native speaker of english, Phuong ?
A. Have you ever talked B. Do you ever talk
C. Did you ever talk D. Are you ever talking
We sometimes............................out when we lived in the city.
A. eat B. will eat C. have eaten D. ate
Vinh....................home for school yet.
A. didn't leave B. hasn't left C. isn't leaving D. don't leave
Last summer, I..........................fishing with my uncle in the afternoon.
A. go B. went C. goes D. going
I watching football matches, but I am not very good .......................... playing football.
A at B in C .on D. for
Team sports are sometimes called...................... sports.
A. compete B. competition C. competitor D. competitive
.............................to a native speaker of english, Phuong ?
A. Have you ever talked B. Do you ever talk
C. Did you ever talk D. Are you ever talking
We sometimes............................out when we lived in the city.
A. eat B. will eat C. have eaten D. ate
Vinh....................home for school yet.
A. didn't leave B. hasn't left C. isn't leaving D. don't leave
Hok tốt !
a, old
b. a table
c. is
d. what
e.in
K CHO MIK NHOA
MIK TRL ĐẦU TIÊN MÀ
A Quiet B height C timid D hight
G sympathy H nothing I rhythm K marathon
When can we see that cartoon? At 8:30 Where can => what time can
How often do you watch "Thank God you are here"?One a week One=> Once
He s cartoons so they are funny and colorful so=> beacuse
Pre-school childern makes up the biggest TV audience in the USA makes=> make
Tiik nha
1.2, 2.1, 3.2, 4.2, 5.1, 6.1, 7.2, 8.1, 9.1, 10.2, 11.2, 12.1, 13.2, 14.1, 15.2, 16.1, 17.1, 18.2, 19.1, 20.2
1-A.This
2-C.Birthday
3-B.Breathe
4-A.Thirty
5-D.Worthy
k cho mk nha !!!
ab(b - a) - bc(b - c) - ac(c - a)
= ab2 - a2b - b2c + bc2 + ac(a - c)
= b2(a - c) - b(a2 - c2) + ac(a - c)
= b2(a - c) - b(a - c)(a + c) + ac(a - c)
= (b2 - ab - bc + ac)(a - c)
= [b(b - a) - c(b - a)](a - c)
= (b - c)(b -a)(a - c)