f(1)=5=>a+b+c=5

f(2)=11=>8a+4b+c=-5

f(3)=21=>27a+9b+c=-60

lập bảng =>a,b,c

nhớ k cho mk,mk cảm ơn

ai giúp với

= 3/22

Ai k mk đi,mk sẽ k lại cho

con ba ba

con chuot phai ko

1. Traffic jams occur more often in a big city than in a countryside.

→ Traffic jams in a countryside .............less often than Traffic jams occur .........................................

2. In the city, the streets are bigger and in better condition than in the countryside.

→ In the countryside, the streets ......are smaller and uncondition than in the city..................................................

3. Of he three beautiful costumes, I like the red one most.

→ I like the red costumes, because .....it's the most beautiful customes............................................