
DIGITALIADA VIII. Calcule cu numere reale prin litere
Authored by Szász Szilárd
Mathematics
8th Grade
Used 29+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
x + 2x + 3x = ...
6x
5x
5x3
6x3
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
3a - 6a + 2a = ...
-5a
-a
a2
5a
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7a + 2b -2a + 5b = ...
5a +3b
9a + 7b
5a + 7b
12ab
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
x + 5 + 3x + 2x2 - 8 - 7x2 = ...
9x2 + 4x +13
-5x4
-3 + 4x - 5x2
x - 5x2
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
3x ∙ (4x – 3) – 2 ∙ (5 – 3x) = ...
12x2 - 3x - 13
9x - 13
12x2 - 15x - 10
12x2 - 3x - 10
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(2x – 3) ∙ (5x – 2) = ...
10x2 - 19x + 6
10x2 + 6
10x2 - 6
10x - 6
10x + 6
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
(3x – 2)2 = ...
9x2 - 4
9x2 - 12x + 4
9x2 + 4
9x2 - 12x - 4
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