\(24:\left\{390-[500-\left(125+35.7\right)]\right\}=2^x\)
\(24:\left\{390-[500-\left(125+245\right)]\right\}=2^x\)
\(24:\left\{390-[500-370]\right\}=2^x\)
\(24:\left\{390-130\right\}=2^x\)
\(24:260=2^x\)
Chỗ này sai đề ạ !
24 : { 390 - [ 500 - ( 125 + 35 . 7 ) ] } = 2x
2x = 24 : { 390 - [ 500 - ( 125 + 245 ) ] }
2x = 24 : { 390 - [ 500 - 370 ] }
2x = 24 : { 390 - 130 }
2x = 24 : 260
2x = 6/65 = ......................
=> Đề sai