Формулы сокращённого умножения
Quiz
•
Mathematics
•
7th Grade
•
Hard
Аян Шаймерденовна Даметова
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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Квадрат суммы двух выражений
(a - b)2 = a2 + 2ab + b2
(a + b)2 = a2 + 2ab + b2
a2 - b2 = (a -b) (a+b)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Куб суммы двух чисел равен кубу первого числа, плюс утроенное произведение квадрата первого числа на второе,…………
плюс утроенное произведение первого числа и квадрата второго, плюс квадрат второго числа
плюс утроенное произведение первого числа и второго, плюс куб второго числа
нет верного ответа
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Куб разности двух выражений
(а-b)3= a3-2a2 b +3a b2+b3
(а-b)3= a3-3a2 b +3a b2-b3
нет верного ответа
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Представьте в виде многочлена: (5ab - 8)(8 + 5ab).
25 - 64a2b2
(5 - 8ab)2
25a2b2 - 64
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Разложите на множители по формуле: 25 - х².
(х + 5)(х - 5)
(5 + х)(5 - х)
(5 - х)(5 - х)
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