Hãy tìm GTLN của biểu thức: P= -x²-y²+4x-4y+2

Mấy Bạn giúp mik đi xin ó :))

cho hình vẽ trên hãy tìm góc AKB biết a//b vafgocs A là 40 độ, góc B là 35 độ

nhờ các bạn làm hộ mình cái mình cảm ơn

Write a letter to your pen friend .Introduce yourself and tell about your family . Write 70-100 words

1. I (go) ___go__to school and (play) ___play____chess yesterday

2.They (not watch) didn't watch T.V last night ?

3. She (buy) _bought____a new hat yesterday.

4.does He (do) _do___ his homework?

5. You (run) __are running__ at present

6. My mother (not cook) __isn't cooking______ at the moment

7. We (play)__are playing_____ tennis now

8. What is she (do) doing at present