1. If the power of M of A is 7 and the power of N of A is 3, the power of m+2n of A is _ _ 63 _ _

2. Factorization: 12x (A+B)-4y (A+B) = _ 4 (A+B). Then k = _ _ _ _ _ _ _

4. If the cubic of m+1 of 7a and the cubic of m+n of square b of -3 a are similar terms, then the quadratic of n = _ _ _ _ _

5, (2x-3/2) = _ _ _. -6x+9/4___

6、(4a+5b)(-4a+5b)=___25b? -16a? __

7, (2x/3 quadratic y+1xy/3 quadratic) × 15xy = _ _ 1x? y? +5x? y? ___

8. The cubic of (-2ax quadratic) =_-8a? X 6 _ _ _ _

9, the cubic of (-a) times the quadratic of (-a) times (-a) = _ _ _ a 6 _ _

1. Simple calculation: 49.8×5.2 (The process should be written out! ) (5-.2) (5+.2) = 25-.4 = 2499.96

11. Calculation: the cubic of (the fourth power of square x of 2a)-the quadratic of (the sixth power of cubic x of 2a)

Original formula = 8a 6x 12-. 11 questions, too! )

original formula =4x? -(y-3)? =4x? -y? +6y-9

Give 1 points for all the above questions! ! ! ! ! Keep your word! ! ! ! ! Cat * * * has prominent red spots, and it is urgent

to go to the hospital for laboratory tests to see what kind of skin diseases it is. There are several kinds of skin diseases of hair, and each treatment method is different. If you use the wrong medicine, it will aggravate your condition, so go to the hospital for laboratory tests first. Remember to find a hospital with good reputation. Why should firecrackers be set off during the New Year? Urgent

In Archaean times, there was a fierce monster scattered in the mountains and forests. People called them Nian. "Nian" is horrible in appearance and ferocious in nature. It only eats birds and animals, scales and insects, and changes its taste every day, from kowtowing insects to living people, which makes people talk about "Nian". Slowly, people mastered the activity law of Nian. It turned out that Nian went to a crowded place to taste fresh food every 365 days (or 366 days, that is, a year), and the time of its appearance was after dark, and when the cock crowed at dawn, they returned to the mountains. Men and women regard this terrible night as a "New Year's Eve" and come up with a set of methods for "New Year's Eve": every family prepares dinner in advance, turns off the fire and cleans the stove, then ties up all the chicken coops, then seals the door of the house and hides in the house to eat the "New Year's Eve"-because this dinner has an ominous meaning, it is very rich. After dinner, no one dared to sleep, so they sat together and chatted with courage. It was getting dark, and Nian escaped from the deep forest and touched the village where people lived together. I saw every family's house door closed and sesame stalks piled in front of it, but there was no one in the street. After turning around for more than half a night, I got nothing, so I had to chew some sesame stalks to satisfy my hunger. After a while, the rooster crowed, and these cruel and stupid monsters had to return disgruntled. People who have survived the "Year of the Year" are very happy. They should thank the ancestors of heaven and earth for their protection, congratulate each other for not being eaten by the "Year of the Year", and open the door to set off firecrackers to meet their neighbors and relatives to congratulate them.

After many years, nothing happened, and people relaxed their vigilance against Nian beast. On the 3th night of one year, Nian beast suddenly fled to a village in the south of the Yangtze River. A village was almost eaten up by Nian beast, and only a newly-married couple with red curtains and red clothes were safe. There are also a few childishness, who lit a pile of bamboos in the yard to play, and the fire was red. After the bamboo burned, it exploded, and Nian beast turned around and fled when he saw the fire. Since then, people know that Nian beast is afraid of red, light and noise. Every year at the end of the year, every household puts up red paper, wears red robes, hangs red lights, beats gongs and drums and sets off firecrackers, so that Nian beast will not dare to come again. In the book of songs Xiaoya Tingliao, there is a record of "the light of the court Liao". The so-called "Tingliao" is a torch made of bamboo poles and the like. After the bamboo pole burns, the air in the bamboo joint expands, and the bamboo cavity bursts, making a crackling sound, which is the origin of "firecrackers". It shows that the animal composition white rabbit is in a hurry.

My little white rabbit

My family has a little white rabbit, which looks like a ball of cotton from a distance, and is very cute!

This little white rabbit has a pair of long big ears, and its hearing is very sensitive. Even if there is a little movement, its ears will stand up at once. There are ruby-like eyes under the long ears, which shine in the dark. The most ridiculous thing is that the three-petal mouth opens on three sides when eating and breathing, revealing pink gums and big white teeth. It only eats vegetarian food, and vegetables and radishes are its favorites.

The little white rabbit starts to jump, which is very cute. Because the hind legs are long and strong, but the front legs are short, when jumping, the hind legs are pushed back hard, and the body can jump out of the distance as it rushes forward. The rabbit's tail is very short, just like a small fluffy ball stuck behind * * *, which really answers the famous saying that "the rabbit's tail can't grow".

People have been familiar with rabbits since ancient times. We are familiar with famous stories such as "Race between the Tortoise and the Rabbit" and "Waiting for the Rabbit". Every time I see my little white rabbit, I will unconsciously think of these beautiful stories.

I like my little white rabbit very much. How to write the composition entitled "Friendship" is urgent!

Friendship

The grass is beautiful because it is green and tender; Flowers are beautiful because they are delicate and charming; Sunshine is beautiful, because it is radiant; Rain and dew are beautiful because they nourish everything. However, there is a kind of beauty, which is the most precious crystallization in my heart, and that is the friendship between friends. The seed of friendship, it will take root and sprout, and finally grow into a tree. My friendship seed comes from a very common thing.

It was a spring morning. I got out of bed and finished dressing and washing. Suddenly, a line flashed through my mind. Because the words flashed too fast, I didn't see them clearly, so I racked my brains to think about it. Finally, I remembered to do my homework with my sister. I hurried to get ready and rushed to my father-in-law's house to do my homework with my sister. No sooner had I entered my father-in-law's house than I went straight to my sister's room. "ah!" Sister let out a cry. "I'm sorry." I mean it with all my heart. This is my sister doing her homework without saying anything. I sat next to her, writing my homework. Writing, I found that I can't do a question. When I just wanted to ask my sister a question, I thought again, I'd better think about it myself. I thought and thought, but I still can't figure it out. This is when my sister saw my mind and asked me what happened. I replied, "I can't write a question. I want to ask you." "Is that the question?" "It's the fourth question." "It's so simple, I'll teach you." My sister will give me this question with confidence. When I understood, I thanked my sister. I seem to see the seeds of friendship between my sister and me sprout.

Friendship, like spring breeze, blows into my heart; Friendship, like a rainbow after rain, makes my heart more beautiful. Friendship makes life full of fun and happiness around you. With friendship, we can have more happiness!

I hope it is useful to you! What is the urgency of the sincere zodiac?

Dragon 11 is urgent

s=1/2*(3-1)*2=2 is urgent!

1. Mother's expression: Her nose was sour and she almost shed tears. On the way back, she shed tears. She walked out of school with surprise. She has mixed feelings of sadness and joy.

2. The teacher only shows disdain for his son. It seems that his son has never been appreciated by others at school and has been under great psychological pressure. As a mother, if I tell my son the truth and criticize him again, won't he have no confidence in the future? She must give him encouragement and give him confidence to face the future life. (In fact, for children, encouragement is the best motivation for learning. )

the answer of "snow geese in the sky": The reason why a mother hides the truth from her son is to carefully protect the child's self-esteem and not let it be hit, and the fact proves that this is right (it is said to be the standard answer)

3. Is what the mother said true? I'm not a stupid boy as the teacher usually says? As long as I work hard and be more careful, I can surpass my deskmate?

4. It was you who protected my little self-esteem with lies. It was you who told me that I could achieve the same results as others through my own efforts. It was your constant support, encouragement and love that made me achieve today!

(the answer of "qqdatoubaba" is "tolerate me, give me room to grow up and encourage me to face the storm and be a real man")

The answer of "Wenziyu2" is that you have been deceiving me, encouraging me, supporting me and staying with me (it is said to be the standard answer)

Urgent!

Will be er 66666 urgent

It's a good sign to be more familiar with parting.