All students are in beautiful school uniforms today.

\(\left(\sqrt{x}+3\sqrt{y}\right)\left(2\sqrt{x}-\sqrt{y}\right)=2x-\sqrt{xy}+6\sqrt{xy}-3y\)

\(=2x-3y+5\sqrt{xy}\)

\(=2x-3y+5.\left(x-2y\right)=2x-3y+5x-10y=7x-13y\)

My neighbors are concerned about the environment.

There are two churches in the town and both of them are extremely old.

The day before today was yesterday.

You should pay more attention in class.

She's out at the moment. Please call back later.

According to the weather forecast., it will be raining tonight.

=> Do you wish dinner to be served now?

\(M=2.\frac{1}{547}.\frac{3}{211}-\frac{546}{547}.\frac{1}{211}-\frac{4}{547.211}\)

\(M=\left(2.\frac{1}{547}.\frac{3}{211}\right)-\left(\frac{546}{547}.\frac{1}{211}\right)-\left(\frac{4}{547.211}\right)\)

\(M=\frac{6}{547.211}-\frac{546}{547.211}-\frac{4}{547.211}\)

\(M=\frac{6}{115417}-\frac{546}{115417}-\frac{4}{115417}\)

\(M=\frac{-540}{115417}-\frac{4}{115417}\)

\(M=\frac{-544}{115417}\)

What's your name?

What's your age?

What's your favorite subject?

What's your favorite drink?

What's your favorite food?

Tick nha