Her name is Hermione. She has brown hair and light skin. She is thin and tall. She kind and usually helps Harry Potter. I like her because her beautiful and kind.

1 There ia a science lab for experiments in the school

2 Does the library have new computers?

3 An's camera is on the desk

4 Tony doen't eat pizza or chocolate for breakfast

b) A = \(\dfrac{x^2}{x^2-4}\)- \(\dfrac{x}{x-2}\)- \(\dfrac{2}{x+2}\)

= \(\dfrac{x^2}{\left(x+2\right)\left(x-2\right)}\)- \(\dfrac{x\left(x+2\right)}{\left(x+2\right)\left(x-2\right)}\)- \(\dfrac{2x-4}{\left(x+2\right)\left(x-2\right)}\)

= \(\dfrac{x^2-x^2-2x-2x+4}{\left(x-2\right)\left(x+2\right)}\)=\(\dfrac{-4x+4}{\left(x-2\right)\left(x+2\right)}\)

a) M={ táo xanh;cà chua}

b) đào