докажите, что значение выражения не зависит от значений входящих в него букв: (c-d)(c²+cd+d²)+d(c-d)²-(c²-cd)(c+2d)

СРОЧНО ОЧЕНЬ​

Вставьте пропущенные слова вместо трех точек. 4 class

1

Our flat\house is...

There are ... rooms in it. We have got ...

My ... likes spending time in ...

... likes ... best because ...

Here is my favourite room. It is ...

I like it because ...

There are ... in this room.

I like this room a lot.

2

My room is always tidy.

I don't have a lot of furniture in my room. There is ...and...I put ...I keep...in...I...cleaning my room.