1. 25.124-24.25+212
2. 80-4.5^2+3.2^3
3.35.48+65.68+20.35
4.2^7:2^3+2^3.2^0-1^10
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\(80-\left(4.5^2-3.2^3\right)=2^{10}-\left(x-4\right)\\ 80-\left(4.25-3.8\right)=1024-\left(x-4\right)\\ 80-\left(100-24\right)=1024-\left(x-4\right)\\ 80-76=1024-\left(x-4\right)\\ 4=1024-\left(x-4\right)\\ x-4=1024-4\\ x-4=1024-4\\ x-4=1020\\ x=1020+4\\ x=1024\)
80-(4.52-3.23)=210-(x-4)
80-(4.25-3.8)=1024-(x-4)
80-(100-24)=1024-(x-4)
80-76=1024-(x-4)
4=1024-(x-4)
4-1024= x-4
1020= x-4
1020+4=x
1024=x
a) 210:[16+3.(6+3.2^2)]-3
=210:[16+3.(6+3.4)]-3
=210:[16+3.(6+12)]-3
=210:[16+3.18]-3
=210:[16+54]-3
=210:70-3
=3-3
=0
\(500-\left\{5.\left[409.\left(2^3.3-21\right)^2\right]\right\}-3\)
\(80-\left(4.5^2-3.2^3\right)=2^{10}-\left(x-4\right)\) )
=> \(80-\left[2^2\left(5^2-3.2\right)\right]=2^{10}-x+4\)
=> \(80-\left[2^2\left(25-6\right)\right]=2^{10}-x+4\)
=> \(80-\left(4.19\right)=2^{10}-x+4\)
=> \(80-76-4=2^{10}-x\)
=> \(2^{10}-x=0\)
=> \(x=1024\)
90-[4.52-3.23]=210-(x-40
90-[100-24]=210-(x-4)
90-76=210-(x-4)
14=1024-(x-4)
x-4=1024-14
x-4=1010
x=1010+4
x=1014
80 - (4.52 - 3.23)
= 80 - (4.25 - 3.8)
= 80 - (100 - 24)
= 80 - 76
= 4
a) (52 + 1) - 9.3
= 26 - 9.3
= 16.7
b) 80 - (4.52 - 3.23)
= 80 - (20.25 - 32.768)
= 80 - (-12.518)
= 92.518
c)[(-18) + (-7)] -15
= -25 - 15
= -40
d) (-219) - (-229) + 12.5
= 10 + 12.5
= 22.5
Tick cho mik nhé
80-(4.25-3.8)=1024-x+4
80-(100-24)=1028-x
80-76=1028-x
4=1028-x
x=1028-4
x=1024
k cho mk nha