8η_ΤΑΥΤΟΤΗΤΕΣ_1,2,3_ΑΝΑΚΕΦΑΛΑΙΩΣΗ
Authored by giannis xantzis
Mathematics
8th Grade
Used 7+ times
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30 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(α + β)2 =
α2 + β2
α2 + 2αβ + β2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(2α + β)2 =
2α2 + 2 . 2α . β + β2
4α2 + 2 . 2α . β + β2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(2α + 3β)2 =
2α2 + 2 . 2α . 3β + 3β2
4α2 + 2 . 2α . 3β + 3β2
4α2 + 2 . 2α . 3β + 9β2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(5x - 3)2 =
5x2 + 2 . 5x . 3 + 32
25x2 + 2 . 5x . 3 + 32
5x2 - 2 . 5x . 3 + 32
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(3x - 5)2 =
3x2 - 2 . 3x . 5 + 52
9x2 - 30x + 9
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(7x - 2)2 =
7x2 - 28x + 4
49x2 - 28x + 4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(α + β).(α - β) =
α2 - β2
β2 - α2
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