(2x – 3)2 = 36
\(\Leftrightarrow4x-6=32
\)
\(\Leftrightarrow
4x=38\)
\(\Rightarrow
x=9,5\)
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Các câu hỏi tương tự
1)(2-x) chia het cho (x+1)
2)(x+3) chia het cho(3x-2)
3)(3x^2+1)chia het cho(x^2-2)
4)(2x^2+5)chia het cho(x+3)
5)(1-3x)chia het cho(2x^2+1)
2. My uncle’s address is 123 Hang Bai. (live)→………………………………………………………………………………………………3. Do you live at 23 TranHung Dao street? (is)→……………………………………………………………………………………………… 4. Is her address 36 Xuan Thuy street? (live)→……………………………………………………………………………………………… 5. What is your grandmother’s address? (where) →………………………………………………………………………………………………
Đọc tiếp
2. My uncle’s address is 123 Hang Bai. (live)
→………………………………………………………………………………………………
3. Do you live at 23 TranHung Dao street? (is)
→………………………………………………………………………………………………
4. Is her address 36 Xuan Thuy street? (live)
→………………………………………………………………………………………………
5. What is your grandmother’s address? (where)
→………………………………………………………………………………………………
1. Where does she live? (what)→… 2. My uncle’s address is 123 Hang Bai. (live)→……3. Do you live at 23 TranHung Dao street? (is)→…………………………………………………… 4. Is her address 36 Xuan Thuy street? (live)→……………………………………………………………………………………………… 5. What is your grandmother’s address? (where) →………………………………………………………………………………………………
Đọc tiếp
1. Where does she live? (what)
→…
2. My uncle’s address is 123 Hang Bai. (live)
→……
3. Do you live at 23 TranHung Dao street? (is)
→……………………………………………………
4. Is her address 36 Xuan Thuy street? (live)
→………………………………………………………………………………………………
5. What is your grandmother’s address? (where)
→………………………………………………………………………………………………
Cho đa thưc \(f(x)=x^{4+}2x^3-2x^2-6x-5\). Trong các số sau 1,-1, 5,-5 số nào là nghiệm của đa thức f(x)
3. Do you live at 23 TranHung Dao street? (is)
→……………………………………………………
4. Is her address 36 Xuan Thuy street? (live)
→………………………………………………………………………………………………
5. What is your grandmother’s address? (where)
→………………………………………………………………………………………………
Giúp mình câu 36 đến 40 với
36.Solar energy (use)………….………..in many countries.
36. It is very difficult for me to drive on the left in England. (used)
1 a) 2x = 5y và x2+y2=133
giúp mik với T.T