\(3x^3y-12x^2y^2+6x^2y=3x^2y\left(x-4y+2\right)\)

\(\left(3x-2\right)^2-\left(x+1\right)^2=\left(3x-2-x-1\right)\left(3x-2+x+1\right)=\left(2x-3\right)\left(4x-1\right)\)

\(x^2+9x+14=x^2+2x+7x+14=x\left(x+2\right)+7\left(x+2\right)=\left(x+2\right)\left(x+7\right)\)

\(3x^2-14x+16=3x^2-6x-8x-16=3x\left(x-2\right)-8\left(x-2\right)=\left(3x-8\right)\left(x-2\right)\)

\(x^8+x+1\)

\(=\left(x^8-x^7+x^5-x^4+x^2\right)+\left(x^7-x^6+x^4-x^3+x\right)+x^6-x^5+x^3-x^2+1\)

\(=x^2\left(x^6-x^5+x^3-x^2+1\right)+x\left(x^6-x^5+x^3-x^2+1\right)+x^6-x^5+x^3-x^2+1\)

\(=\left(x^2+x+1\right)\left(x^6-x^5+x^3-x^2+1\right)\)

\(x^3-5x+2\)

\(=x^3+2x^2-x-2x^2-4x+2\)

\(=x\left(x^2+2x-1\right)-2\left(x^2+2x-1\right)\)

\(=\left(x-2\right)\left(x^2+2x-1\right)\)

a) Cấu hình e của R: 1s²2s²2p⁶3s¹

b) R thuộc chu kì 3, nhóm IA, nguyên tố s

c) Do R có 1e lớp ngoài cùng => R có tính chất của kim loại

d) Cấu hình của X: 1s²2s²2p⁵

=> X là F(Flo)

4P+5O2-to>2P2O5

0,4---0,5-----0,2

n P=0,4 mol

n O2=0,625 mol

=>O2 dư

=>m P2O5=0,2.142=28,4g

a: Xét tứ giác AEHF có 

\(\widehat{AEH}=\widehat{AFH}=\widehat{FAE}=90^0\)

Do đó: AEHF là hình chữ nhật

1:

i: \(=\dfrac{15}{34}+\dfrac{19}{34}+\dfrac{7}{21}+\dfrac{2}{3}-1-\dfrac{15}{37}\)

\(=1+\dfrac{1}{3}+\dfrac{2}{3}-1-\dfrac{15}{37}\)

\(=1-\dfrac{15}{37}=\dfrac{22}{37}\)

j: \(=1-\left(-27\right)+\dfrac{1}{2}:\dfrac{-1}{8}\)

\(=1+27-4=24\)

k: \(=-8+\dfrac{1}{2}\cdot\dfrac{-4}{1}-15\)

\(=-8-2-15=-25\)

l: \(=3:\dfrac{9}{4}+\dfrac{1}{9}\cdot6\)

\(=3\cdot\dfrac{4}{9}+\dfrac{1}{9}\cdot6\)

\(=\dfrac{4}{3}+\dfrac{2}{3}=2\)

m: \(=9\cdot\dfrac{1}{3}-\left(-27\right)=3+27=30\)

n: \(\sqrt{\dfrac{16}{25}}\cdot\sqrt{\dfrac{121}{64}}-1\dfrac{3}{10}\)

\(=\dfrac{4}{5}\cdot\dfrac{11}{8}-\dfrac{13}{10}\)

\(=\dfrac{11}{10}-\dfrac{13}{10}=-\dfrac{2}{10}=-\dfrac{1}{5}\)

o: \(=\dfrac{9}{8}\cdot12-\dfrac{1}{2}\)

\(=\dfrac{27}{2}-\dfrac{1}{2}=\dfrac{26}{2}=13\)

p: \(=\dfrac{3^2\cdot2^2+3^2\cdot3\cdot2^2+3^2}{-13}\)

\(=\dfrac{3^2\left(2^2+3\cdot2^2+3^2\right)}{-13}\)

\(=\dfrac{9\cdot\left(4+3\cdot4+9\right)}{-13}\)

\(=\dfrac{9\cdot25}{-13}=-\dfrac{225}{13}\)

Theo em thế giới nên giải quyết khủng bố như sau:

-Việc xử lí đối với khủng bố, các cá nhân phản động cần phải xem xét kĩ lưỡng về những hành vi, hậu quả mà nhóm khủng bố đã gây ra từ đó mới đưa ra biện pháp hợp lí để giải quyết triệt để. Bởi còn nhiều cá nhân gia nhập khủng bố là do bị lôi kéo, học thức thấp, bị nhiều lợi ích tẩy não, bản thân họ có lẽ cũng không ý thức được việc mình đang làm là sai.Đối với những cá nhân này nếu biết hối lỗi vẫn nên dành cho sự khoan hồng, phạt cải tạo, phạt tù từ 12-20 năm...

Đối với những tên đầu sỏ cũng như vậy, xem xét các tội lỗi và đưa ra án phạt, những tên không biết hối cải, cướp đi sinh mạng người khác kiên quyết xử phạt bằng bản án tử hình.

Đưa các số đó về cơ số nguyên tố (2;3;5..).

Có hai trường hợp:

Trường hợp 1: Hai lũy thừa có cùng số mũ

Nhân: giữ nguyên số mũ, nhân 2 cơ số: a^m.b^m=(a.b)^m

chia: giữ nguyên số mũ, chia 2 cơ số: a^m:b^m=(a:b)^m

Trường hợp 2: Khác số mũ

Viết về dạng lũy thừa của lũy thừa để đưa 2 lũy thừa về cùng cơ số hoặc số mũ

a^m.bⁿ=a^p.q.b^p.r=(a^p)^q.(b^p)^r=c^q.c^r

a^m:bⁿ=a^p.q:b^p.r=(a^p)^q:(b^p)^r=c^q:c^r

a^m.bⁿ=a^p.q.b^p.r=(a^q)^p.(b^r)^p=c^p.d^p

a^m:bⁿ=a^p.q:b^p.r=(a^q)^p:(b^r)^p=c^p:d^p

T.A 7 sao mà khó z? bn có ghi nhầm lp ko??? bài này mk chịu! sr ha!

1. Mik giúp nè:

On June 5, 1911, under the name of Ba Ba, Nguyen Tat Thanh (1) accepted as a cook for Amiran Latouche Tréville's ship of the Native Star, leaving Saigon to Marseille, France. , Began the journey to save the country. From 1911 until 1920, Nguyen Tat Thanh went to many countries in Europe, Africa, America, studying and learning to decide the way to save water.

By the end of 1917, Nguyen Tat Thanh returned to France from England. Here he is known in Russia V. Lenin has led the successful revolution, founded the first agrarian nation in the world, protecting the interests of the majority of the working population. The good news was to support Nguyen Tat Thanh's enthusiasm.

In 1918, World War I ended. In 1919 the empire won the Versailles Conference. On this occasion, on behalf of Vietnamese patriotic people in France, Nguyen A Quoc (Nguyen Tat Thanh's new name) sent to the Conference of the claim for freedom of the Vietnamese people.

In July 1920, through L'Humanité, France, Nguyen A'i Quoc was reading V.I Lenin's Theses on Ethics and Colonial Issues. Later recalled the joy of reading V. I Lenin's thesis, President Ho Chi Minh wrote: "The thesis of V. I Lenin made me very moved, excited, clear how confident! I am excited to tears. Sitting alone in the room that I spoke up loudly as I was speaking in front of the crowded crowd: "Damned fellow countrymen! This is a necessity for us, this is the way to liberate us. "

Nguyen Ai Quoc spoke at the 18th Congress of the Socialist Party of France meeting in the city of Tours in 1920

Nguyen Ai Quoc was the only member of the Indochinese people attending the 18th Congress of the French Socialist Party in Tua City (Tours). At this congress, he was joined by prominent French political and cultural activists such as Macxen Casanh (Marcel Cachin), Paul Vaillant Couturier (Marxist Couturier), Marxist anti-Marxist foul. On the forum of the Congress, Nguyen Ai Quoc denounced the crimes of French colonialism in Indochina, calling on the working class and the French people to support the struggle of the Vietnamese people and other colonial people. . He suggested: "The socialist party must act in a practical way to support the oppressed natives ... The party must propagate socialism in all colonial countries. We see that the Third Social Party's entry into the Third World means that the Party specifically promises that the Party will now appreciate the importance of the colonial issue. " Also at this Congress, he voted to endorse the Comintern, becoming one of the founders of the French Communist Party.

After the Tua Assembly, the first Vietnamese communist Nguyen Ai Quoc immediately began work to unite, organize and lead the people of the colonies to fight against oppression, national liberation and social liberation. And liberate people.

After the operation from 1911-1920 Nguyen Ai Quoc affirmed "want to save the country and liberate the nation no other path of revolutionary proletarian way"

CHÚC BN HỌC TỐT!!!

Thông cảm nếu bài viết mik sai vì mik chỉ mới học lớp 6!!! :(( :(( :((

Còn nếu đúng thì nhớ tick mik để mik lấy SP nha!!! =)) =)) =))

2. Mik giúp nè:

General Vo Nguyen Giap has the birth name Vo Giap, alias: Van. Born on 25/8/1911 in Loc Thuy Commune, Le Thuy District, Quang Binh Province.

From 1925 to 1926, he joined the student movement in Hue. In 1927, he joined the revolutionary Tan Viet Party (a precursor of the Indochinese Communist Party, now the Communist Party of Vietnam).

In 1930, he was arrested by the enemy and sentenced to two years in prison. After leaving prison, he continued his propaganda activities, causing revolutionary foundation in youth, students. In 1936, he was active in the semi-legitimate democracy movement of the Party in Hanoi; Is the editor of the Communist Party's newspapers: "Our Voice," "Forward," "Gathering," "Times," and "News." As Chairman of the Tonkin Press Committee.

In June 1940, he was admitted to the Indochinese Communist Party and sent to China to meet with leader Nguyen Ai Quoc.

At the beginning of 1941, he returned to Vietnam, taking part in the preparation of the armed uprising in Cao-Bắc-Lang.

In December 1944, comrade Nguyen Ai Quoc was tasked with setting up the Vietnamese Liberation Army.

In April 1945, at the Tonkin Military Conference, he was sent to the Tonkin Military Commission. From May 1945, he was the Commander of the new revolutionary armed forces, united in Vietnam liberation troops. In June 1945, comrade Nguyen Ai Quoc assigned the task of establishing provisional committee of Liberation Zone.

In August 1945, he was appointed to the Central Committee of the Party and the National Committee for Coma. At the National People's Congress of Tan Tao, he was elected to the National Committee for Liberation of Vietnam; Is the Minister of the Interior in the Provisional Government of the Democratic Republic of Vietnam and is added to the Standing Committee of the Party Central Committee.

In March 1946, he was Chairman of the Military, Member of the Government of the Union; Upon the establishment of the Central Military Commission, he was appointed Secretary of the Central Military Commission. In October 1946, as Minister of Defense, President Ho Chi Minh was authorized as Commander-in-Chief of the Vietnam People's Army and Self-Defense Forces. In January 1948, he was promoted general, general commander of the People's Army of Vietnam.

In February 1951, at the second National Party Congress, he was elected member of the Central Committee of the Communist Party and was elected by the Central Committee to the Politburo.

From September 1955 to December 1979, he was Deputy Prime Minister, Minister of Defense.

In September 1960, at the Third Party Congress of the Communist Party, he was re-elected to the Central Committee, elected by the Central Committee on the Politburo.

In December 1976, at the 4th Party Congress of the Communist Party, he was re-elected to the Central Committee, elected by the Central Committee on the Politburo.

At the 5th and 6th National Party Congress, he was re-elected to the Central Committee.

From January 1980, he was a permanent deputy prime minister; From April 1981 to December 1986, he served as Vice Chairman of the Council of Ministers (now Deputy Prime Minister).

He was consistently elected as Member of the National Assembly from I to VII.

Due to great contribution to the revolutionary cause of the Party and people, great prestige inside and outside the country, General Vo Nguyen Giap was awarded the Gold Medal Order by the Party and the State, Ho Chi Minh Order , The badge of the 70-year-old Party and many other noble and noble medals of Vietnam and the world.

CHÚC BN HỌC TỐT!!!

Thông cảm nếu bài mik sai vì mik chỉ mới học lớp 6!!! :(( :(( :((

Còn nếu bài mik đúng thì nhớ tick mik để mik lấy SP nha!!! =)) =)) =))

sufficiency