
Operații cu numere reale reprezentate prin litere
Authored by Boldea Daniela
Mathematics
8th Grade
Used 21+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2 x +7 x este egal cu....
9x
4 x
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
4 x 3 + 5x 2 - 3 x 3- 5 x2 este egal cu...
4
x 3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3a - 6a + 2a = ...
-5a
-a
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
7a + 2b -2a + 5b = ...
5a +3b
5a + 7b
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Rezultatul calcului (-2x2)3 este
-8x6
-6x5
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
x + 5 + 3x + 2x2 - 8 - 7x2 = ...
9x2 + 4x +13
-5x2+4x-3
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
3x ∙ (4x – 3) – 2 ∙ (5 – 3x) = ...
12x2 - 3x - 10
9x - 13
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