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các bạn có thể giải chi tiết cho mình được ko . Mình cần ghấp lắm
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\(\frac{2^{10}.13+2^{10}.65}{2^8.104}\)
\(=\frac{2^{10}.\left(13+65\right)}{2^8.104}\)
\(=\frac{2^8.2^2.81}{2^8.104}\)
\(=\frac{2^8.4.81}{2^8.104}\)
\(=\frac{2^8.324}{2^8.104}\)
\(=\frac{324}{104}\)
\(=\frac{81}{26}\)
\(\frac{2^{10}×13+2^{10}×65}{2^8×104}\)
\(=\frac{2^{10}×\left(13+65\right)}{2^8×104}\)
\(=\frac{2^8×2^2×81}{2^8×104}\)
\(=\frac{2^2×81}{104}\)
\(=\frac{324}{104}\)
\(=\frac{81}{26}\)
Làm cách này nhanh hơn nhé , bạn Xyz
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1024.13 + 1024 . 65
_________________
256 . 104
= 13312 + 66560
________________
26624
= 79872
________
26624
Bạn tự rút gọn nha
mik mới khôi phục đc điểm âm mà giờ lại bị trừ tiếp, các bạn giúp mik nha, mik sẽ giúp lại 100%
cảm mơn các bạn trc
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??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
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A, 210x13+210x65/28x104
=210x(13+65)/28x4x26
=210x78/28x22x26
=210x78/210x26
=78/26
=3
b, (1+2+3+...+100)x(12+22+32+...+102)x(65x111-13.15.37)
=(1+2+3+...+100)x(12+22+..+102)x(7215-7215)
=(1+2+..+100)x(12+22+..+102)x0
=0
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\(a,\left(3^2\cdot5^2\cdot4^3\right):\left(8\cdot3^2\right)\)
\(=\frac{3^2\cdot5^2\cdot4^3}{8\cdot3^2}\)
\(=\frac{3^2\cdot5^2\cdot2^6}{2^3\cdot3^2}\)
\(=5^2\cdot2^3\)
\(=25\cdot8=200\)
\(b,\left(2^{10}\cdot13+2^9\cdot130\right):\left(2^8\cdot104\right)\)
\(=\frac{2^{10}\cdot13+2^9\cdot130}{2^8\cdot104}\)
\(=\frac{2^9\cdot\left(2\cdot13+130\right)}{2^8\cdot2^3\cdot13}\)
\(=\frac{2^9\cdot156}{2^{11}\cdot13}\)
\(=\frac{2^9\cdot2^3\cdot3\cdot13}{2^{11}\cdot13}\)
\(=\frac{2^{12}\cdot3\cdot13}{2^{11}\cdot13}\)
\(=2.3=6\)
210x13+210x65
=210x(13+65)
=210x78
=79872
a) = 2\(^{10}\).( 13+65)
=2\(^{10}\). 78
=64.78
=4992
b) =256.104
=26624