2, christine said she was not going to do anything that weekend

a)    \(\dfrac{1}{9}.27^x=3^x\)
\(\dfrac{27^x}{9}=3^x\)
\(3^x=3^x\)
x thuộc R
b)
\(\left(3x+4\right)^2-8=41 \)
\(\left(3x+4\right)^2=49\)
\(3x+4=7\)
3x=3
x=1

more ko phải less nha mk lộn

Tung has less homework than Phong

trên đầu bài là giấu phẩy hay giấu nhân thế

who,what,good looking,dark,excellent,like

a) Mr.Long is old
he is small
he is fat

1d
3d
4c
7b
8a
10c
11d
13d
14c
15a
16a
17b
18c

1, he used to play the piano at night
2,I wish He gave me his address.
3.Lan wishes she could play table tennis.
5 Paul  used to play games anymore.
8 I wish there was any rivers and lakes in my country.