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![](https://rs.olm.vn/images/avt/0.png?1311)
(36 + 52) x 46 + (36 + 52) x 53 + 88
= 88 x 46 + 88 x 141
= 4048 + 12408
= 16456
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left|x\right|.13=26\)
\(\Leftrightarrow\left|x\right|=2\)
\(\Leftrightarrow x=\pm2\)
\(\left|x\right|.13=26\)
\(=>\left|x\right|=\frac{26}{13}=2\)
\(=>\orbr{\begin{cases}x=2\\x=-2\end{cases}}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\dfrac{1}{2022}\) \(\times\) \(\dfrac{2}{5}\) + \(\dfrac{1}{2022}\) \(\times\) \(\dfrac{7}{5}\) - \(\dfrac{1}{2022}\) \(\times\) \(\dfrac{8}{10}\)
= \(\dfrac{1}{2022}\) \(\times\) ( \(\dfrac{2}{5}\) + \(\dfrac{7}{5}\) - \(\dfrac{8}{10}\))
= \(\dfrac{1}{2022}\) \(\times\) ( \(\dfrac{9}{5}\) - \(\dfrac{4}{5}\))
= \(\dfrac{1}{2022}\) \(\times\) \(\dfrac{5}{5}\)
= \(\dfrac{1}{2022}\times1\)
= \(\dfrac{1}{2022}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
1) 1/2*1/6=1/12 ; 1/3*1/4=1/12. Ta có : 17/5+1/12*71/5-1/12*28/5=1/12*(17/5+71/5-28/5)=1/12*60/5=1/12*12=1 2)1/10+4/20+9/30+16/40+25/50 =1/10+2/10+3/10+4/10+5/10(rút gọn) =15/10=3/2 3)18/15*(2525/3636+1515/1818-2020/7272)=6/5*(25/36+5/6-5/18)(rút gọn)=6/5*25/36+6/5*5/6-6/5*5/18=5/6+1-1/3=9/6=3/2.
đi mà, mọi người xin hãy giúp em![undefined](https://hoc24.vn/images/discuss/1641385984_61d5900068ed4.jpg)
mọi người ơi giúp mk đi mà -_-" ~