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\(a,245-96+6\)
\(=155\)
\(b,=23\times\left(65+35\right)\)- 360
\(=23\times100-360\)
\(=1940\)
\(c,3^3+3^2-\left(2^2+7\right)\)
\(3^3+3^2-\left(4+7\right)\)
=\(3^3+3^2-11\)
=\(27+9-11\)
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1) 3^4.2+2^3.5-7(5^7:5^5)
=3^4.2+2^3.5-7.5^2
=81.2+8.5-7.25
=162+40-175
=202-175=27
2) 5.2^2.2^3-4(5^8:5^6)
=5.4.8-3.5^2
=160-100=60
3) (3^5.3^7):3^10+5.2^4-7^3:7
=3^12:3^10+5.16-7^2
=3^2+80-7^2
=9+80-49=40
4) 15:(3^5:3^4)-2^9:2^7
=15:3-2^2
=5-4=1
5) 5.3^5:(3^8:3^5)-2^3.5
=5.3^5:3^3-8.5
=5.3^2-40
=5.9-40
=45-40=5
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Chất lượng như Trường THCS Nam Hà - Thành phố Hà Tĩnh mà phải hỏi bài này sao
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a) có đáp án lần lượt là: 2;4;8;16;32;64;128;256;512;1024
b) 9;27;81;243;729;2187
c) 16;64;256,1024;16384
d) 25;125;625;3125
e) 36;216;1296
\(35.77+23.35+5^3.2^3\)
\(=35.\left(77+23\right)+\left(5.2\right)^3\)
\(=35.100+10^3\)
\(=3500+1000\)
\(=4500\)
\(35.77+23.35+5^3.2^3=35.\left(77+23\right)+\left(5.2\right)^3\)\(=35.100+10^3=3500+1000=4500\)