=)) ai biếc

1 Did you watch a football match last night?

2 There was an interesting film on TV last Sunday

3 My brother usually does his homework before school

4 I didn't meet my brother 2 weeks ago

5 Does she wash the dishes every day?

My mother usually cylces to work because riding bike is good for her health

Life in the country side is not as noisy as life in the city

HCM city is bigger than HN

Hung is shorter than Nam

The pencil is not as long as the ruler

That house is not as new as this house

dạ =)) thanks chị nhìuu

\(A=\dfrac{2\left(\sqrt{x}-2\right)-\left(\sqrt{x}+2\right)+4}{\left(\sqrt{x}-2\right)\left(\sqrt{x}+2\right)}=\dfrac{2\sqrt{x}-4-\sqrt{x}-2+4}{\left(\sqrt{x}+2\right)\left(\sqrt{x}-2\right)}=\dfrac{\sqrt{x}-2}{\left(\sqrt{x}+2\right)\left(\sqrt{x-2}\right)}=\dfrac{1}{\sqrt{x+2}}\)