Предмет: Алгебра, автор: valeriaoliferovckaa

Разложение алгебраических выражений на множители с помощью формул сокращённого умножения. Урок 4

Разложи на множители многочлен 5x2y + 60xy + 180y.

5y(x + 6)2

5x(y + 6)2

5(x + 6)2

5(x – 6y)2

5(xy + 6)2
ПОЖАЛУЙСТА ЕСЛИ МОЖЕТЕ ТО МОЖНО ВСЕ ОТВЕТЫ ​

Ответы

Автор ответа: Дейлионна
57

Ответ:

5 {x}^{2} y + 60xy + 180y = 5y( {x}^{2}  + 12x + 36) = 5y {(x + 6)}^{2}


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I.Put the words in order to make sentences (in Present Perfect).Translate the sentences.
1. never/swum/ I/ in/ sea/the/have
2. has/come home/ just/ he/from work
3. already/doing homework/we/finished/have/
4. Indian/you/ever/food/ have/tried?
5. in/flown/has/sister/never/my/a/plane


B.Open the brackets.
1. I (go) shopping if I (have) enough money.
2. If I (go) to the butcher’s I (buy) sausages.
3. I (take) this jacket if it (fit) me.
4. If I (not have) cash I (pay) by credit card.
5. I (buy) these shoes if you (make) a discount.

C. Make sentences with “be going to”
1. I/be going to/play tennis.
2. We/be going to/ sleep.
3. He/be going to/ do homework.


III. Use the Past Simple or Past Continuous form of the verb in brackets.
1. Kelly……(have) a shower when her mobile phone …(ring).
2. Our dog (run) away while I …..(talk) to Sarah.
3. I ….(draw) a picture of the teacher on the board when he …(come) into the classroom.
4. While Erica…..(sunbathe) in the garden, the cat …(jump) on her head.
5. What…you…(do) at 7p.m. yesterday? - I…..(watch) an interesting TV programme about Paris.

IV.Use comparative or superlative form of the adjectives.
1. I heard about your exam results! You must be the …..person in the world now. (happy)
2. Mexico City is one of the …cities in the world, but Tokyo is even …(big).
3. I think George Clooney is the ….actor. I think he’s much …than Brad Pitt.(good)
4. This is one of the … films I have ever seen. I think it’s …than the film we saw two weeks ago.(interesting).
5. I thought losing all my money was the … experience of my life, but this situation is …than that.(bad)