-2-(x-17)=34-(-x+25)
ai tra lop giup minh bai nay minh se like cho
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4 tháng 7 2016
\(3\cdot\left(x-2\right)^2=2+25\)
\(\Leftrightarrow3\cdot\left(x-2\right)^2=27\)
\(\Leftrightarrow\left(x-2\right)^2=9\)
\(\Leftrightarrow\orbr{\begin{cases}x-2=3\\x-2=-3\end{cases}}\Leftrightarrow\orbr{\begin{cases}x=5\\x=-1\end{cases}}\)
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14 tháng 10 2015
Cac chu so phan muoi , phan tram cua mot so thap phan co hai chu so o phan thap phan la hai so tu nhien lien tiep co tong bang 11. Tich cac chu so o phan thap phan bang phan nguyen cua so do.tim so thap phan do !
Giai chi tiet ho minh nhe!
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Phải ko ?
4 tháng 12 2017
If you used to be a student, I'm sure that you have to have a good teacher in your mind. For me, My good teacher is my english teacher. Her name is Jessica, she is a American teacher. I was impressed by her character. If your teacher is hard, Jessica is easy. She always smile with her student and help us improve our grammar and vocabulary. In addition, she know French, Japanese and Chinese. It's a special impression for me because that's the first time I was taught by a teacher who know so many foreign languages.
Nowaday, she doesn't teach me, but in my mind, she's still a best teacher.
"Jessica, I wish you had all best things"
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13 tháng 9 2016
Ta có 128 chia hết cho x và 96 chia hết cho x nên:
x là ước chung của 96 và 128 ( x>20)
vậy x=32
-2-(x-17)=34-(-x+25)
-2-x+17=34+x-25
-x-x=34-25+2-17
-2x=-6
x=(-6):(-2)
x=3
-2 - (x - 17) = 34 - (-x + 25)
- 2 - x + 17 = 34 + x - 25
-2 - 2x = 34 - 25 - 17
-2 - 2x = -8
2x = -2 - (-8)
2x = 6
x = 3