\(4x-3-x-5=30-3x\Leftrightarrow4x-x+3x=30+3+5\Leftrightarrow6x=38\Leftrightarrow x=\dfrac{19}{3}\)
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\(\left|x-10\right|-2\left|x+1\right|=0\)
Tìm x
1. Tìm x
a) 3,2. x + (-12).x + 2,7 = -4,9
b) -5,6.x + 2,9.x -3,86= -9,8
2. tính Giá trị
A= -5,13:\(\left(5\dfrac{5}{28}-1\dfrac{8}{9}.1.25+1\dfrac{16}{63}\right)\)
B= \(\left(3\dfrac{1}{3}.1,9+19,5:4\dfrac{1}{3}\right).\left(\dfrac{62}{75}-\dfrac{4}{25}\right).\)
Cho đa thức: \(f\left(x\right)=x+x^2-6x^3+3x^4+2x^2+6x-2x^4+1\)
1. Thu gọn, rồi sắp xếp các số hạng của đa thức theo lũy thừa giảm dần của biến \(x\)
2. Xác định, bậc của đa thức, hệ số tự do, hệ số cao nhất
3. Tính \(f\left(-1\right),f\left(0\right),f\left(1\right),f\left(-a\right)\)
Tính
\(\left(\frac{3}{7}\right)^{21}:\left(\frac{9}{49}^6\right)\)
you must keep to... when you travel in uk
a.the left b.the right c.on the left d.on the right
12 tháng 2 2017 lúc 11:44
Arrang these sentences to make a conversation
1. But you said I was driving on the right side
2. Stop!
3. Why are you driving on the right of the road
4. Its like a looking-glass! But Ill try to remember.
5. A strange country! If right is wrong, Im right when Im on wrong side. So why did you stop me?
6. Thats right! You are on the right, and thats wrong
7. Do you want me to drive on the wrong side?
8. What is the matter?
9. You are driving on the wrong side.
10. My dear sir, you must k...
Đọc tiếp
Arrang these sentences to make a conversation
1. But you said I was driving on the right side
2. Stop!
3. Why are you driving on the right of the road
4. It's like a looking-glass! But I'll try to remember.
5. A strange country! If right is wrong, I'm right when I'm on wrong side. So why did you stop me?
6. That's right! You are on the right, and that's wrong
7. Do you want me to drive on the wrong side?
8. What is the matter?
9. You are driving on the wrong side.
10. My dear sir, you must keep to the left. The right side is left
Your answer:...............................................................................................
1. Arrange these sentences to make a conversation.
On the street in an English town, a policeman stops a car. In the car there í a visitor from another country who does not know that traffic in England keeps to the left.
1. But you said I was driving on the right side.
2. Stop!
3. Why are you driving on the right side of the road?
4.Its like a looking - glass! But Ill try to remember.
5. A strange country! If right is wrong, Im right when Im on wrong side. So why đi y...
Đọc tiếp
1. Arrange these sentences to make a conversation.
On the street in an English town, a policeman stops a car. In the car there í a visitor from another country who does not know that traffic in England keeps to the left.
1. But you said I was driving on the right side.
2. Stop!
3. Why are you driving on the right side of the road?
4.It's like a looking - glass! But I'll try to remember.
5. A strange country! If right is wrong, I'm right when I'm on wrong side. So why đi you stop me?
6. That's right! You are on the right, and that's wrong.
7. Do you want me to drive on the wrong side.
8. What's the matter?
9. You are driving on the wrong side.
10. My dear sir, you must keep to the left. The right side is left.
Your answer: .............................................
\(^{\left(-7\right)^x}\)=\(\frac{1}{49}\)
tìm x nhé
Cho biểu thức: \(P\left(x\right)=x^3+\text{ax}+b\). Biết rằng P(0) và P(1) đều chia hết cho 3. Chứng tỏ rằng P(x) có giá trị là bội của 3 với mọi giá trị nguyên của x