Алгебра: раскрытие скобок и преобразование выражений
Quiz
•
Mathematics
•
7th Grade
•
Easy
Никита Пугач
Used 2+ times
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18 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
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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