
Формулы сокращенного умножения
Authored by Феруза Юсупова
Mathematics
7th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Разложите квадрат: (x + 5)²
x² + 10x + 25
x² + 10x + 20
x² + 25
x² + 5x + 5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Разложите квадрат: (3y - 4)²
9y² + 24y + 16
3y² - 8y + 16
9y² - 16y + 24
9y² - 24y + 16
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите сумму кубов: a³ + b³
(a + b)²
(a + b)(a² - ab + b²)
(a - b)(a² + ab + b²)
a³ + b³ + c³
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите разность кубов: x³ - 2³
(x - 2)(x² + 2x + 4)
(x + 2)(x² - 2x + 4)
(x - 2)(x² - 4x + 4)
(x - 2)(x² + 4x + 4)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите квадрат суммы: (2x + 3)²
8x² + 12x + 3
4x² + 6x + 9
2x² + 9x + 4
4x² + 12x + 9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найдите квадрат разности: (y - 7)²
y² - 14y + 49
y² - 10y + 25
y² - 16y + 64
y² - 12y + 36
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Вычислите произведение суммы на разность: (a + b)(a - b)
a^2 + b^2
ab
a^2 - b^2
a^2 - 2b
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