Urgent! Ask for the composition of p62 in the Chinese book of the fifth grade volume I of Beijing Normal University Edition Choose one, do it and write it 1. Write down your learning methods and tips in your life 2. Exchange life tips, learn good methods, select the class wisdom 3. Compile a pamphlet of good methods and tips provided by the whole class, and give it a loud name. Circulate it frequently, encourage bold practice, and constantly supplement it This is what the book asks for~ It should be faster, about 300 ~ 400 words. If you write well, add gold coins~ Be quick! On the second floor, I don't know if I didn't make it clear or if you have a problem in understanding: I'm talking about composition But the information provided on the second floor is very useful, can be used as QQ log, hehe~~~

There are Chinese everywhere in our life, which is beyond reproach! We don't need Chinese anywhere in our school or at home. We need the invisible help of language for the family communication between our elders and family members, and for the happy topics of our neighbors. The happy Spring Festival couplets at the door of every family during the new year, and the new and interesting placards in the school garden, Wonderful and orderly billboards are almost inseparable from the embellishment of beautiful words; the gold lettered signboards of enterprises and companies, and various newspapers and magazines have also become the "Habitat" of the Chinese family. In this "small" world, wherever Chinese is, it will appear quietly. Even if you take a "eyeglass" and squint from a distance, you can see the Chinese waving to you warmly!
I remember once, I overheard such an interesting advertisement: "stomach." after listening to it, I burst into laughter and said, "look, there is a typo on TV, and" hello "is written as" stomach "for the first time. Today, I finally got an eye opener.", I didn't expect that smart dad was making fun of me. My dad said, "your understanding is wrong. There's no wrong word in the advertisement. It's an interesting language with two meanings, but it has something new. It's not so bad and ridiculous as you think. It seems that you have to learn more!"
Dad's words make me have some new understanding of Chinese. Especially in the life of Chinese, those humorous sentences can often make the finishing point to reflect the importance and practicality of Chinese in social life. For example, "our reputation is blown out" (electric fan advertisement), "eyes are the window of your heart, in order to protect your heart, Please install glass on the window! "(glasses advertisement) and so on. These humorous and attractive questions come from Chinese. This not only makes the advertisement appealing, but also makes many people remember it. The world is wonderful because of Chinese, and human beings are happy because of language. Human beings can't do without Chinese. Let's try our best to learn this wonderful language, Let it always appear in the land of China, let it always carry forward!
Life is full of Chinese!
Life is full of inspiration from Chinese

Solving the fractional equation (1) 7 / x ^ 2-x = 1 / X-1 (2) X-2 / x + 2-16 / x ^ 2-4 = 1

（1）7/x(x-1)=1/x-1
7-x / X (x-1) = 0 because x cannot be equal to 1, so x = 7
(2) Because x ^ 2-4 cannot be equal to 0, X is not equal to plus or minus 2, X-2 / x + 2-16 / x ^ 2-4 = 1
Change to (X-2) ^ 2-16 = x ^ 2-4
x^2+4-4x-16＝x^2-4
-4X=8
x=-2

If √ (3x + 5x-2-m) + √ (2x + 3y-m) = √ (199-x-y) * √ (x-199 + y), find the value of M

First, the two radicals to the right of the equal sign should be meaningful
Then x-199 + Y > = 0, that is a + Y > = 199
199-x-y > = 0, that is, x + y

Please simplify (5x + 2y-3) - (x-7y + 9) and adopt it immediately!

(5x+2y-3)-(x-7y+9)
=5x+2y-3-x+7y-9
=4x+9y-12

-How to make the numerator and denominator of the fraction not contain a '-' sign when a is divided by 2B without changing the value of the fraction

-(a/2b)

Solving equation (2x ^ 2 + X + 1) / (x ^ 2 + 2x-3) = (2x ^ 3 + 5x ^ 2 + 4x) / (x ^ 3 + 4x ^ 2 + 2x-8)

Double sided multiplication (x ^ 2 + 2x-3) (x ^ 3 + 4x ^ 2 + 2x-8)
2x^5+8x^4+4x³-16x²+x^4+4x³+2x²-8x+x³+4x²+2x-8=2x^5+5x^4+4x³+4x^4+10x³+8x²-6x³-15x²-12x
x³-3x²+6x-8=0
(x-2)(x²+2x+4)-3x(x-2)=0
(x-2)(x²-x+4)=0
X & # 178; - x + 4 = 0 has no solution
So x = 2

Why is the transpose of matrix a times a equal to the square of determinant of a?

|AA^T| = |A| |A^T| = |A||A| = |A|^2

Using the formula method, the process of X & # 178; - 2x-2 = 0,2x & # 178; + 3x-1 = 0, X & # 178; + 5x + 9 = 0, (2x-1) (x + 5) = 6x should be detailed
Please. It's really urgent

1）
x²-2x-2=0
△=b²-4ac=（-2）²-4×1×（-2）=4+8=12＞0
x1=（-（-2）+√12）/（2×1）=1+（√12）/2
x2=（-（-2）-√12）/（2×1）=1-（√12）/2
2）
2x²+3x-1=0
△=b²-4ac=3²-4×2×（-1）=9+8=17＞0
x1=（-3+√17）/（2×2）=（-3+√17）/4
x2=（-3-√17）/（2×2）=（-3-√17）/4
3）
x²+5x+9=0
△=b²-4ac=5²-4×1×9=25-36=-11＜0
The equation has no solution
4）
（2x-1）（x+5）=6x
2x²+10x-x-5-6x=0
2x²+3x-5=0
△=b²-4ac=3²-4×2×（-5）=9+40=49＞0
x1=（-3+√49）/（2×2）=4/4=1
x2=（-3-√49）/（2×2）=-10/4=-5/2

On the number axis, the number represented by a point six units from the origin is () their relationship (). 2. The number whose absolute value is 1 and 4 / 3 is ()
When answering questions 3 and 4, you need to have a process, and if you want to answer questions, you'd better answer all of them. Thank you!

1. On the number axis, the number represented by the point of 6 unit length from the origin is (6 and - 6) their relationship (opposite to each other)
2. The numbers with absolute value equal to 1 4 / 3 are (1 4 / 3 and - 1 4 / 3)

Trivariate linear equation x + 2Y + 3Z = 11 X-Y + 7z = 10 x + 3Y + 2Z = 2

X + 2Y + 3Z = 2 = = = 11 X-Y + 7z = 2 = = = > y = (20-25z) / 23;
X = 2-3z-2y into 10 x + 3Y + 2Z = 2 = = y = (18-28z) / 17; then calculate Z