9. handicapped (adj+N)
10. applications (number+N)
11. organizes (S+V; every year -> HTĐ)

ĐK: `x \ne 3; x \ne -3`

`A=3/(x-3)-(6x)/(9-x^2)+x/(x+3)`

`=3/(x-3)+(6x)/(x^2-9)+x/(x+3)`

`=3/(x-3)+(6x)/((x-3)(x+3))+x/(x+3)`

`=(3(x+3)+6x+x(x-3))/((x-3)(x+3))`

`=(3x+9+6x+x^2-3x)/((x+3)(x-3))`

`=(x^2+6x+9)/((x-3)(x+3))`

`=((x+3)^2)/((x-3)(x+3))`

`=(x+3)/(x-3)`

`x=5 => A=(5+3)/(5-3)=4`

`19xx82+18xx19`

`=19xx(82+18)`

`=19xx100`

`=1900`.

16. has lived
17. lived
18. to go
19. saving
20. B -> watching
21. B -> could 
22. C-> not to talk
22. B -> better

1. doesn't rain

2. had had

`17xx26+26xx44+39xx26`

`=26xx(17+44+39)`

`=26xx100`

`=2600`.

\(45.\left(-24\right)+\left(-10\right).\left(-12\right)\\ =-45.24+10.12\\ =-45.2.12+5.2.12\\ =2.12+\left(-45+5\right)\\ =24.\left(-40\right)=-960\)

- Lần sau bạn nhớ viết đề bài rõ ràng nhé. ^^

- Lớp 6 có học dấu suy ra rồi hã??