Супер ФСУ

Супер ФСУ

8th Grade

8 Qs

quiz-placeholder

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Формулы сокращённого умножения

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Супер ФСУ

Супер ФСУ

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

Created by

Raya Nalyotenko

Used 32+ times

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Какой формулы сокращенного умножения не существует?

(a+b)2

a2+b2

a3+b3

(a+b)3

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Допишите равенство: (a+2b)2=a2+4ab+...

2b2

3b2

4b2

5b

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Раскрыть скобки: (2a+5)2

4a2+10a+25

4a2+20a+25

2a2+20a+25

a2+20a+25

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Заменить звездочку (*) одночленом так, чтобы получилось верное равенство. (7x+1)2=(*)+14x+1

x2

14x2

7x2

49x2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Разложите на множители: 100 - k6

(10 - k3)(10 + k3)

(10 - k2)(10 + k2)

(k3 - 10)(k3 + 10)

(10 - k4)(10 + k2)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Замените знак * таким одночленом, чтобы полученное выражение можно было представить в виде квадрата двучлена: * - 28pq + 49q2

2p2

4

8p2

4p2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Раскрыть скобки: (2x2+3y2)2

4x6+12x2y2+9y4

4x6+6x3y2+9y4

4x3+12x3y2+9y4

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