
РІЗНИЦЯ КВАДРАТІВ
Authored by Тетяна Казакова
Mathematics
7th Grade
Used 9+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
( х - 7)(7 + х ) =
Х2 + 7
Х2 - 49
(Х - 7)2
Х2 + 49
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(4b - 1)(4b + 1)=
4b2 - 2
16b2 -1
4b2 - 1
16b - 1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Виконати множення (с + 3a)(3а - с)=
c2 - 9a2
9a2 - c2
c2 + 9a2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(x7 - d5)(x7 + d5)=
x14 - d10
x9 - d7
x9 + d7
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
(1- x3)(x3+1)=
1 - x6
x6- 1
1- x9
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Виконайте множення (0,5x - 0,2)(0,5x + 0,2)
0,25x2 - 4
0,25x2 - 0,04
0,25x2 - 0,4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Оберіть правильну відповідь
(a - b)(a + b) = a2 + b2
(a - b)(a + b) = a2 - 2ab + b2
(a - b)(a + b) = a2 - b2
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