
ФСУ 7 класс
Authored by Анна Клейменова
Mathematics
7th Grade
Used 2+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите формулу "Куб суммы"
a3+b3= a3-3a2b+3ab2-b3
a3+b3=(a-b)(a+b)
(a+b)3=a3+3ab+b3
(a+b)3=a3+3a2b+3ab2+ b3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите формулу "Разность квадратов"
a2+b2=a2+2ab+b2
a2-b2=(a+b)(a-b)
(a-b)2=(a-b)(a+b)
a2-b2= a2-2ab+b2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите формулу "Квадрат разности"
(a-b)2=a2-ab-b2
a2-b2=(a+b)(a2-ab+b2)
a2-b2=a-b*b+a
(a-b)2=a2-2ab+b2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите продолжение формулы: "a3+b3=........."
(a+b)(a2-ab+b2)
(a-b)(a2-2ab+b2)
(a+b)(a2-2ab+b2)
(a-b)(a2-ab+b2)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите формулу "Квадрат суммы"
a2+b2=a2-2ab-b2
(a+b)2=(a+b)(a-b)
(a+b)2=a2+2ab+b2
(a+b)2=a2-2ab+b2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите формулу "Куб разности"
a3-b3= a3+3a2b+3ab2+b3
a3-b3=(a-b)(a+b)
(a-b)3=(a-b)(a+b)
(a-b)3=a3-3a2b+3ab2-b3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Выберите продолжение формулы: "a3-b3=........."
(a-b)(a2+ab+b2)
(a+b)(a2-2ab+b2)
(a-b)(a2-2ab-b2)
(a+b)(a2+ab+b2)
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