#1 Қысқаша көбейту формулалары
Authored by Досбол Досбол
Mathematics
7th Grade
Used 5+ times
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8 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
(3 - a)2=
3 - 6a +a2
9 + 6a +a2
9 + 9a +a2
9 - 6a +a2
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
(а2-4в2)
(а-2в)(а+в)
(а-2в)(а+2в)
(а-2в)(а-2в)
(а-4в)(а+4в)
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
7a2 -7c2=
7(a + c)(a + c)
(7a -7c)(7a + 7c)
7(a - c)(a + c)
7(a - c)2
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
(2a+4b)2=
4a2 + 16ab - 16b2
4a2 - 16ab + 16b2
4a2 + 16ab + 16b2
4a2 + 16ab + 8b2
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
(a - b)3
a3 + 3a2b + 3ab2 - b3
a3 + 3a2b + 3ab2 + b3
a3 - 3a2b + 3ab2 - b3
a3 + 3a2b - 3ab2+ b3
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
a3 - b3=
(a - b)(a2 + ab + b2)
(a + b)(a2 + ab + b2)
(a - b)(a - ab + b)
(a - b)(a2 + ab - b2)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
8 - a3 =
(2 - a)(4 + 2a + a2)
(2 - a)(4 - 2a + a2)
(2 + a)(4 + 2a + a2)
(2 - a)(4 - 2a - a2)
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