Giúp em với ạ

các bác giúp em với ạ 😘

B= (\(\frac{x^2}{x^3-4x}\)- \(\frac{10}{5x+10}\)-\(\frac{1}{2-x}\)): ( \(x+2+\frac{6-x^2}{x-2}\))

a) rút gọn B
b) tìm giá trị của B biết \(\left|x\right|\)=\(\frac{1}{2}\)
c) tìm x đề B > 0
d) tìm x \(\in\) Z để B \(\in\) Z
các bác làm hộ e với, dạng này lần đầu e gặp T_T

3. Chọn đúng tính từ/ trạng từ để điền vào mỗi chỗ trống sau

1. Our team won the game because we played very ………….. (good/ well).

2. I tried on the shoes and they fitted me……………(perfect/ perfectly).

3. He had an accident because he was driving too ………….(fast/ fastly).

4. Tom is a …………..driver. He is driving ………….along the narrow road.(careful/ carefully)

5. Do you usually feel …………… (nervous/ nervously) before examination.

6. She speaks English ……………. (fluent/ fluently).

7. He hurt himself………………….. (bad/ badly).

8. He looked me…………………... when I interrupted him. (angry/ angrily)

9. I always feel………… when the sun is shining. (happy/ happily)

10. Lan worked very……….……. for the exam. (hard/ hardly)

11. I am not………………..…. at Math. (good/ well)