\(3x\left[8^2-2.\left(2^5-1\right)\right]=2022\)

\(3x\left[8^2-2.31\right]=2022\)

\(3x.\left[64-62\right]=2022\)

\(3x.2=2022\)

\(3x=2022\div2\)

\(3x=1011\)

\(x=337\)

Vậy \(x=337\)

3x [ 8² - 2. ( 2⁵ - 1) ]=2022

=> 3x . [ 64 - 2 . ( 32 - 1 )] = 2022

=> 3x . ( 64 - 2 . 31 ) = 2022

=> x . ( 64 - 62 ) = 674

=> x . 2 = 274

=> x = 337

\(\left(13x-12^2\right):5=5\)

\(13x-12^2=5.5\)

\(13x-12^2=25\)

\(13x=25+12^2\)

\(13x=169\)

\(x=169:13\)

\(x=13\)

\(=>x=13\)

Vậy : x= 13 

~ Chúc bn hok tốt ~ ^^^

\(3x\left[64-2.31\right]=2022\)

\(3x.2=2022\)

\(3x=1011\)

\(x=337\)

3x[ 64- 2.31]= 2022

3x.2= 2022

3x= 1011

x= 337

\(13x-144=5.5\)

\(13x-144=25\)

\(13x=25+144\)

\(13x=169\)

\(x=169:13\)

\(x=13\)

 \(\left(13x-12^2\right)\div5=5\)

\(13x-12^2=5.5\)

\(13x-144=25\)

\(13x=25+144\)

\(13x=169\)

\(x=13\)

https://www.youtube.com/channel/UCrvbojLGIWZot6_JUWWoMuw/

\(13x-144=25\)

\(13x=169\)

\(x=13\)

https://www.youtube.com/channel/UCrvbojLGIWZot6_JUWWoMuw/featured

\(123-3\left(x-5\right)=48\)

\(3\left(x-5\right)=123-48=75\)

\(x-5=75:3=25\)

\(x=25+5=30\)

\(x=30\)

IV = 4

XVII = 17

XXX = 30

M = 1000

#Phương

4,17,30,1000

Tính nhanh  

28.(231+69) +72(231+69)

= 28 x 300 + 72 x 300

= (28+72) x 300

= 100 x 300

= 30000

#Học tốt!

Chúc bn ngày mới vui vẻ!

Kết quả của phét tính 

4.5²- 6.3²

A 45    B.46     C47     D48

Giải:

 4.5² - 6 . 3²

= 4 . 25 - 6 . 9

= 100 - 54

= 46

Trả lời ;

kết quả của phét tính 

4.5²- 6.3²

A 45    B.46    C47     D48

~ HT ~