576 số

tick mình nha

4x5x6=120

12x15x9=1620

để P có GTNN thì 3(x-1)^2 và(y²+1)^{2015 có GLNN}

ta có: (x-1)^2\(\ge\)0 với mọi x

=>3(x-1)^2\(\ge\)0 với mọi x=>3(x-1)^2=0

y^2\(\ge\)0 với mọi y

=>(y^2+1)^2015\(\ge\)1 với mọi y=>(y^2+1)^2015=1

=>x=0 và y=0

=>P=2008

Vậy MinP=2008 \(\Leftrightarrow\)x=0 và y=0

Bài 1: Viết câu gián tiếp
1. "I'm going away tomorrow"perter said
-> perter said he was going away the following day
2. " I have something to show you, Lan" Nam said

->Nam told Lan he had something to show her
3." I don't like living here" Tom said
->Tom said he didn't like living there
4."What time is it, Bin" Jim asked
->Jin asked Bin what time it was
5."I can do it tomorrow" Hung said
->Hung said he could do it the following day
Bài 2: Cho dạng đúng của động từ trong ngoặc
1. They spent 2 hours(clean)_cleaning____the room yesterday
2. It took me 2 months (do)_to do____this project
3. I am very happy(see)___to see__ you, Tom
4. It is tome for me(go)___to go__ to bed, mum
5. You had better(tell)___tell__ me about your family
6. It is in for is ( learn)_____ English ???:D???

p/s: Giải giúp với bài tập tết, Cảm ơn :)