Формулы сокращенного умножения

Формулы сокращенного умножения

Presentation

•

Mathematics

•

7th - 8th Grade

•

Medium

Created by

Галия Бейсенбаева

Used 75+ times

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1 Slide • 12 Questions

1

Формулы сокращенного умножения

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2

Multiple Choice

Продолжи формулу a²-b²

1

(a-b)(a+b)

2

(a+b)(a+b)

3

a²-2ab+b²

4

(a-b)(a-b)

3

Multiple Choice

Продолжите формулу (а-b)²

1

a²+2ab+b²

2

a²+ab+b²

3

a²-2ab+b²

4

(a-b)(a+b)

4

Multiple Choice

Выполни действие:

(х-3у)²

1

х²-3ху+9у²

2

х²+6ху+9у²

3

х²-6ху-9у²

4

х²-6ху+9у²

5

Multiple Choice

Замени *, чтобы равенство было верным:

(3b-4c)²=9b²-*bc+16c²

1

12

2

-12

3

24

4

7

6

Multiple Choice

Замени *, чтобы равенство было верным:

а²+*с²=(a-4с)(a+4с).

1

4

2

8

3

16

4

-16

7

Multiple Choice

Замени *, чтобы равенство было верным:

4а²-25b²=(2a-*b)(2a+*b)

1

25

2

5

3

12.5

4

-25

8

Multiple Choice

Выбери верное продолжение тождества (a+b)(a-b)=

1

a²+b²

2

a²-b²

3

а-b

4

a+b

9

Multiple Choice

Выбери правильную формулу квадрата разности:

1

(a+b)²=a²+ab+b²;

2

(a-b)²=a+2ab+b²

3

(a-b)²=a²-2ab+b²

4

(a-b)²=a-2ab+b²

10

Multiple Choice

Разложите на множители многочлен 16-x²

1

(2-x)(2+x)

2

(4-x)(4+x)

3

(4+x)(4+x)

4

(x-4)(x+4)

11

Multiple Choice

Выполни умножение многочленов (р-5)(р+5)

1

p²-5

2

p-25

3

p²-25

4

p²⁺25

12

Multiple Choice

Представьте трехчлен в виде квадрата двучлена 4x² +12x+9

1

(2+3х)²

2

(2-3х)²

3

(2x-3)²

4

(2x+3)²

13

Multiple Choice

Найди ошибку:

1

(5+3с)²= 25+30с+ 9с²

2

(2b²-1)²= 4b²-1

3

(2b+7cd)(7cd-2b)= 49c²d²- 4b²

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Формулы сокращенного умножения

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