\(\frac{2^5.3^7-2^5.3^6}{2^5.3^6}=?\)
giúp mình với nha, có cách làm càng tốt, mình tick cho
Những câu hỏi liên quan
\(\frac{5^4-5^3}{100}\)
\(\frac{3^3+3^2+3}{39}\)
\(\frac{5.3^7-5.3^5}{5.3^5-5.3^3}\)
\(\frac{2^{15}+2^{14}+2^{13}}{2^{13}+2^{12}+2^{11}}\)
đề bài yêu cầu là rút gọn các bạn nhớ giúp mình nha
5^4-3/100=1/20
3^3+2+1/3*13=3^5/13
5.3^7-5/5.3^5-3=1
2^15+14+13/2^13+12+11=2^6
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Thực hiện phép tính
A, (2⁵.2⁷)÷2¹⁰+5.3⁴-6³÷6. B, (5²-3)÷11. C, (5²⁰²²-5²⁰²¹)÷5²⁰²¹
D, ( 7²⁰-7¹⁹)÷7¹⁹ Giúp mình với vì tối nay mình đi học rồi
\(A=\left(2^5\cdot2^7\right):2^{10}+5\cdot3^4-6^3:6\\ =2^{12}:2^{10}+5\cdot3^4-6^2\\ =2^2+5\cdot3^4-36\\ =4+405-36\\ =373\\ B=\left(5^2-3\right):11\\ =\left(25-3\right):11\\ =22:11\\ =2\\ C=\left(5^{2022}-5^{2021}\right):5^{2021}\\ =5^{2021}\cdot\left(5-1\right):5^{2021}\\ =4\\ D=\left(7^{20}-7^{19}\right):7^{19}\\ =7^{19}\cdot\left(7-1\right):7^{19}\\ =6\)
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Thực hiện phép tính
1, A, 2³.10-2³.5. B, 5.3²-42. C, 6+3.2² D, 2³.3-21
2, a, 7⁶÷7⁴+3³.3²-1²⁰²² B, 6⁶÷6⁵+2³.2²-²⁰²²⁰ C, 2³.2²+6⁶÷6⁵+23¹
D, 3³.3²+7⁷÷7⁵-2³ giúp mình với vì tối nay mình đi học rồi
1. a) 40
b) 3
c) 18
d) 3
2. a) 291
b) 37
c) 61
d) 284
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Rút gọn biểu thức 3^(10)+6^(2)/5.3^(8)+20.Giúp mình nha.Thank!!!!!!
\(\frac{3^{10}+6^2}{5\cdot3^8+20}\)
\(=\frac{3^{10}+\left(3\cdot2\right)^2}{5\left(3^8+4\right)}\)
\(=\frac{3^{10}+3^2\cdot2^2}{5\left(3^8+4\right)}\)
\(=\frac{3^2\left(3^8+4\right)}{5\left(3^8+4\right)}\)
\(=\frac{9}{5}\)
Bài 3 : Tính bằng cách hợp lí nhất
c) \(\frac{-7^5.3^3}{7^2.\left(-3\right)^3}\)
( giải giúp nhanh hộ mình với cảm ơn nhiều )
Tính:c) 2^5.3^6/2^6.3^5
d)3^7.4^6/9^3.2^12
e)2^8.5^6/4^5.25^4
Giúp mình nha :3
a) 7/5.8/19+7/5.12/19-7/5.1/19
b)-3/5.5/7+-3/5.3/7+-3/5.6/7
c)10 2/9 + (2 2/5 -7 2/9)
d) 6 3/10 -(3 4/7+ 2 3/10)
GIÚP MÌNH VỚI Ạ. MÌNH CẦN GẤP. CẢM ƠN MỌI NGƯỜI NHÌU!
a) \(\dfrac{7}{5}.\dfrac{8}{19}+\dfrac{7}{5}.\dfrac{12}{19}-\dfrac{7}{5}.\dfrac{1}{19}\)
\(=\dfrac{7}{5}.\left(\dfrac{8}{19}+\dfrac{12}{19}-\dfrac{1}{19}\right)\)
\(=\dfrac{7}{5}.1\)
\(=\dfrac{7}{5}\)
b) \(\dfrac{-3}{5}.\dfrac{5}{7}+\dfrac{-3}{5}.\dfrac{3}{7}+\dfrac{-3}{5}.\dfrac{6}{7}\)
\(=\dfrac{-3}{5}.\left(\dfrac{5}{7}+\dfrac{3}{7}+\dfrac{6}{7}\right)\)
\(=\dfrac{-3}{5}.2\)
\(=\dfrac{-6}{5}\)
c) \(10\dfrac{2}{9}+\left(2\dfrac{2}{5}-7\dfrac{2}{9}\right)\)
\(=\dfrac{92}{9}+\dfrac{12}{5}-\dfrac{65}{9}\)
\(=\dfrac{92}{9}-\dfrac{65}{9}+\dfrac{12}{5}\)
\(=3+\dfrac{12}{5}\)
\(=\dfrac{15}{5}+\dfrac{12}{5}\)
\(=\dfrac{27}{5}\)
d) \(6\dfrac{3}{10}-\left(3\dfrac{4}{7}+2\dfrac{3}{10}\right)\)
\(=\dfrac{63}{10}-\dfrac{25}{7}-\dfrac{23}{10}\)
\(=\dfrac{63}{10}-\dfrac{23}{10}-\dfrac{25}{7}\)
\(=4-\dfrac{25}{7}\)
\(=\dfrac{28}{7}-\dfrac{25}{7}\)
\(=\dfrac{3}{7}\)
Chúc bạn học tốt
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`@` `\text {Ans}`
`\downarrow`
`a)`
\(\dfrac{7}{5}\cdot\dfrac{8}{19}+\dfrac{7}{5}\cdot\dfrac{12}{19}-\dfrac{7}{5}\cdot\dfrac{1}{19}\)
`=`\(\dfrac{7}{5}\cdot\left(\dfrac{8}{19}+\dfrac{12}{19}-\dfrac{1}{19}\right)\)
`=`\(\dfrac{7}{5}\cdot\dfrac{19}{19}=\dfrac{7}{5}\cdot1=\dfrac{7}{5}\)
`b)`
\(-\dfrac{3}{5}\cdot\dfrac{5}{7}+\left(-\dfrac{3}{5}\right)\cdot\dfrac{3}{7}+\left(-\dfrac{3}{5}\right)\cdot\dfrac{6}{7}\)
`=`\(-\dfrac{3}{5}\cdot\left(\dfrac{5}{7}+\dfrac{3}{7}+\dfrac{6}{7}\right)\)
`=`\(-\dfrac{3}{5}\cdot\dfrac{14}{7}\)
`=`\(-\dfrac{3}{5}\cdot2=-\dfrac{6}{5}\)
`c)`
\(10\dfrac{2}{9}+\left(2\dfrac{2}{5}-7\dfrac{2}{9}\right)\)
`=`\(10\dfrac{2}{9}+2\dfrac{2}{5}-7\dfrac{2}{9}\)
`=`\(\left(10\dfrac{2}{9}-7\dfrac{2}{9}\right)+2\dfrac{2}{5}\)
`=`\(3+2\dfrac{2}{5}=\dfrac{27}{5}\)
`d)`
\(6\dfrac{3}{10}-\left(3\dfrac{4}{7}+2\dfrac{3}{10}\right)\)
`=`\(6\dfrac{3}{10}-3\dfrac{4}{7}-2\dfrac{3}{10}\)
`=`\(\left(6\dfrac{3}{10}-2\dfrac{3}{10}\right)-3\dfrac{4}{7}\)
`=`\(4-3\dfrac{4}{7}=\dfrac{3}{7}\)
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Thực hiện phép tính
\(\frac{2^5.3^5+2^4.3^4}{2^4.3^6-2^5.3^5}\)
\(A=\frac{6^{30}.3^{11}.7-2^{31}.5.3^{40}}{2^{28}.17.3^{38}-6^{27}.3^{11}}.\)
giai gium minh cho 3 tick
vn noi la lam