Tìm X
27. x^3 = ( x + 2 )^3
K
Khách
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12 tháng 10 2018
\(2.3^x=10.3^{12}+8.27^4\)
\(\Rightarrow\) \(2.3^x=10.3^{12}+8.3^{12}\)
\(\Rightarrow\) \(2.3^x=3^{12}.\left(10+8\right)\)
\(\Rightarrow\) \(2.3^x=3^{12}.2.9\)
\(\Rightarrow\) \(2.3^x=3^{14}.2\)
\(\Rightarrow\) \(3^x=3^{14}\)
\(\Rightarrow\) \(x=14\)
NN
11 tháng 11 2019
I)Tường thuật câu hỏi
1)Aunt Chau asked ''How many people are there in your class?''
=> aunt chau asked how many people there were in my class me
2)Mrs. Nhu said "I will go to Rach Gia tomorow''
=> mrs nhuw said she would go the rach gia the next day
3) Mr. No said '' I must leave now''
=> mr no said he had to leave then
4)Mrs Phuong asked '' How old is your mother?''
=>mrs phuong asked me how old my mother was
II)Tìm từ có dấu nhấn khác
1) a) gather b)relax c)begin d) agree
2) a) blanket b)exchange c)picnic d)campus
SY
11 tháng 11 2019
I.
1. Aunt Chau asked me how many people there were in my class.
2. Mrs. Nhu said that she would go to Rach Gia the following day.
3. Mr. No said that he had to leave now.
4. Mrs. Phuong asked me how old my mother was.
II.
1. a
2. b
LN
1
HH
4 tháng 12 2015
\(=\frac{7}{2}x\frac{1269}{46}x\frac{1}{17}x\frac{22}{9}=\frac{7x1269x22}{2x46x17x9}=\frac{10857}{782}\)
NK
0
NK
0