The quadratic power of 3a and the quadratic power of B - 17abxy + 10xy cross multiplication

The quadratic power of 3a and the quadratic power of B - 17abxy + 10xy cross multiplication

3a²b²-17abxy+10x²y²
1 -5
3 -2
So 3A & # 178; B & # 178; - 17abxy + 10xy = (ab-5xy) (3ab-2xy)
If you don't understand, I wish you a happy study!

The square of X + 15x + 36 = 0 is solved by cross multiplication

The square of X + 15x + 36 = 0
(x+12)(x+3)=0
x1=-12 x2=-3

If the value of 2x2 + 3Y + 7 is 8, find the value of 6x2 + 9y + 8

∵2x2+3y+7=8，∴2x2+3y=1，∴6x2+9y+8=3（2x2+3y）+8=3×1+8=11．

How many kilometers is a kilometer

One kilometer is one kilometer
1km = 1000M
1km = 1000M
1 Li = 500 m

The standard translation on page 75 3a and page 76 2 of unit 12

P753a last week's talent show was a great success. There were 15 shows. Eliza Clark won the best actor award for playing a beautiful piano piece. Hu Yue was the quietest performer. He danced a dance without music accompaniment. The funniest performance award was won by Stephen Dean and his dog Fido

The ratio of the two numbers is 3:4. The sum of the greatest common factor and the least common multiple of the two numbers is 52

3：4=12：16
（12,16）=4
【12,16】=48
48＋4=52

Given the linear function y = KX + B, when - 3 is less than or equal to X and less than or equal to 1, the value range of the function is 1 less than or equal to y and less than or equal to 9,
Find the relation of this linear function

When k ＞ 0, y increases with the increase of X, but there is a difference
1=k×(-3)+b
9=k×1+b
The solution is k = 2, B = 7, y = 2x + 7;
When k ＜ 0, y decreases with the increase of X, and then decreases
9=k×(-3)+b
1=k×1+b
The solution is k = - 2, B = 3, y = - 2x + 3

Primary school grade 5 Volume 1 Chinese unit 2 composition 400 words or 350 words
Unit 2 the topic of the composition is hometown twenty years later. All the texts in this group are about the yearning for your hometown. When you grow up, you may leave your hometown. What will it be like when you return to your hometown that you have been away from for a long time one day?
Ten or twenty years later, I will go back to my hometown and write an exercise for the content. Give full play to your imagination. I can write about what changes have taken place in my hometown and what places have aroused your recollection. I can write about the scene of meeting relatives or classmates, or other content you want to write. Recall the author's method of expressing feelings in the text, and try to use it in my own exercise, Learning is the middle level in the class. It's better to write the children's level

My hometown is in XX, it is a green grass, beautiful and prosperous place. Time flies, the sun is still so bright, so warm. I still remember 20 years ago, I was just a primary school student, happy to go to school every day, high

There are 2000 chickens in the farm. The number of chickens is one third less than that of ducks. How many ducks can you raise without the equation?

2000 / (1-1 / 3) = 3000

What is the single digit of the power of 2013 in 2013?

The single digit of the power of 2013 in 2013
=3 to the power of 2013
=3 to the power of 2012 × 3
=(4 power of 3) to the power of 503 × 3
=1 × 3 digits
=3