
формулы сокращенного умножения
Authored by Айбек Садыбеков
Mathematics
7th Grade
10 Questions
Used 8+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Найди ошибку:
(5+3с)2 = 25+30с+ 9с2
(2b+7cd)(7cd-2b)= 49с2d2 - 4b2
(2b2 -1)2 = 4b2 -1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Представить трехчлен в виде квадрата двучлена 4x2+12х+9
(2+3х)2
(2x-3)2
(2-3х)2
(2x+3)2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выполнение умножение многочленов (р-5)(р+5)
р 2 -5
р 2 -25
р-25
р2+25
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Разложите на множители многочлен 16-x 2
(2-х)(2+х)
(4+х)(4+х)
(4-х)(4+х)
(х-4)(х+4)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выбери правильную формулу квадрата разности:
(а+b)2=а2+ab+b2
(а-b)2=а2-2аb+b2
(а-b)2=а2+2аb+b2
(а-b)2=а-2аb+b2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Выбери верное продолжение тождества (a+b)(a-b)=
а2+b2
а-b
а2-b2
а+b
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Замени*, чтобы равенство было верным:
с²-*a²=(с-3а)(с+3а).
3
9
6
-6
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