Составьте правильную формулу:
(a+b)² =
Формулы сокращенного умножения
Quiz
•
Mathematics
•
7th Grade
•
Hard
Анна Лисицкая
Used 71+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Составьте правильную формулу:
(a+b)² =
a² + 2ab + b²
a² - 2ab + b²
a² + b²
(a-b)(a+b)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Составьте правильную формулу:
(a-b)² =
a² + 2ab + b²
a² - 2ab + b²
a² - b²
(a-b)(a+b)
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Составьте правильную формулу:
(a+b)³ =
a³ + 3a²b + 3ab² + b³
a³ -3a²b + 3ab² -b³
a³ + b³
(a + b)(a² - ab + b²)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Составьте правильную формулу:
(a-b)³ =
a³ + 3a²b + 3ab² + b³
a³ -3a²b + 3ab² -b³
a³ - b³
(a - b)(a² + ab + b²)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Составьте правильную формулу:
a³ + b³ =
a³ + 3a²b + 3ab² + b³
(a + b)(a² - ab + b²)
(a + b)(a² - 2ab + b²)
(a - b)(a² + ab + b²)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Составьте правильную формулу:
a³ - b³ =
a³ - 3a²b + 3ab² - b³
(a + b)(a² - ab + b²)
(a - b)(a² + 2ab + b²)
(a - b)(a² + ab + b²)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Составьте правильную формулу:
a² - b² =
(a - b)(a + b)
(a - b)(b - a)
a² - 2ab + b²
(ab)²
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