Формулы сокращенного умножения

Формулы сокращенного умножения

1st Grade

20 Qs

quiz-placeholder

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Формулы сокращенного умножения

Формулы сокращенного умножения

Assessment

Quiz

Mathematics

1st Grade

Hard

Created by

валентина сумина

Used 338+ times

FREE Resource

20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Раскройте скобки (x+2y)2

х2+4ху+4у2

х2+4ху+2у2

х2+4у2 

х2+2ху+2у2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Раскройте скобки (2а-3)2

2-6а+9

2-12а+9

2-12а+9

2-9

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Допишите равенство: (3a + 2b)2 = 9a2 + 12ab + …

4b2

8b

2b2

4a2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Раскройте скобки: (2a + 5)2

4a2 +10a+25

4a2 +20a+25

2a2 +20a+25

2a2 +10a+25

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Возведите в куб двучлен 3х + 2:

27x3 +54x2 +12x+8

27x3 +18x2 +12x+8

9x3 +18x+8

27x3 +54x2 +36x+8

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Замените звездочку (*) одночленом так, чтобы получилось верное равенство.

(7x + 1)2 = (*) + 14x + 1

7x2

49x2

14x2

49x

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Разложите на множители: 100 - k6:

(10-k3)(10+k3)

(10-k4)(10+k2)

(k3 -10 )(10+k3)

(k3 -10)(k3 +10)

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