Trịnh Minh Hoàng
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2023-01-27 15:01:31
\(432\cdot25+432\cdot76\\ =432.\left(25+76\right)\\ =432.101\\ =43632\)
2023-01-27 15:00:38
\(2012\cdot2014+2014-2013\cdot2014\\ =2012\cdot2014+2014\cdot1-2013\cdot2014\\ =2014.\left(2012+1-2013\right)\\ =2014.0\\ =0\)
2023-01-26 16:24:15
\(\dfrac{2}{3};\dfrac{3}{4};\dfrac{4}{5}\) có mẫu số chung là:
\(3\cdot4\cdot5=60\)
2023-01-26 16:23:30
\(2\cdot2^x=2^8\\ =>2^x=2^8:2\\ =>2^x=2^{8-1}\\ =>2^x=2^7\\=>x=7\)
2023-01-26 16:22:07
\(5\) dam2 = \(500\) m2
2023-01-26 16:21:09
\(256400000\)
2023-01-26 16:20:57
2023-01-26 16:20:14
\(10-0,25\cdot0,125\cdot32\\ =10-\left(0,125\cdot32\right).0,25\\ =10-4.0,25\\ =10-1\\ =9\)
2023-01-26 16:17:50
\(5^{20}-5^{29}=5^{20-29}=5^{-9}\)
2023-01-26 16:08:10
\(b.385,89-x=1,34\cdot2,3\\ =>385,89-x=3,082\\ =>x=385,89-3,082\\ =>x=382,808\)