Алгебра: раскрытие скобок и преобразование выражений

Алгебра: раскрытие скобок и преобразование выражений

7th Grade

18 Qs

quiz-placeholder

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Алгебра: раскрытие скобок и преобразование выражений

Алгебра: раскрытие скобок и преобразование выражений

Assessment

Quiz

Mathematics

7th Grade

Easy

Created by

Никита Пугач

Used 2+ times

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18 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Раскройте скобки, используя формулу: (x + 5)²

x² + 25

x² + 10x + 25

x² + 5x + 25

x² + 5x + 10

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Раскройте скобки, используя формулу: (3a - 2)²

9a² - 12a + 4

9a² - 4

3a² - 12a + 4

9a² - 6a + 4

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Раскройте скобки, используя формулу: (4k + 7m)(4k - 7m)

16k² - 49m²

4k² - 7m²

16k² + 49m²

8k² - 14m²

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Представьте в виде произведения: 9x² - 16y²

(3x - 4y)(3x + 4y)

(9x - 16y)(x + y)

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Представьте в виде произведения: a² + 6a + 9

(a + 3)²

(a + 6)²

(a + 9)²

(a + 2)²

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Представьте в виде произведения: 25m² - 20mn + 4n²

(5m - 2n)²

(5m + 2n)²

(25m² - 4n²)

(5m - n)²

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Преобразуйте выражение в многочлен стандартного вида: (y + 4)² - (y - 2)(y + 2)

8y + 20

2y + 12

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