сумма и разность кубов
Quiz
•
Mathematics
•
7th Grade
•
Medium
Оксана Єрьоменко
Used 15+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Представьте трехчлен в виде квадрата двучлена 4x2 +12x+9
(2+3х)2
(2-3х)2
(2x-3)2
(2x+3)2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выполни умножение многочленов (р-5)(р+5)
p2-5
p-25
p2-25
p2+25
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Разложите на множители многочлен 16-x2
(2-x)(2+x)
(4-x)(4+x)
(4+x)(4+x)
(x-4)(x+4)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выбери правильную формулу квадрата разности:
(a+b)2=a2+ab+b2;
(a-b)2=a+2ab+b2
(a-b)2=a2-2ab+b2
(a-b)2=a-2ab+b2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выбери верное продолжение тождества (a+b)(a-b)=
a2+b2
a2-b2
а-b
a+b
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Замени*, чтобы равенство было верным:
с²-*a²=(с-3а)(с+3а).
3
6
9
-6
7.
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)
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