
Calcul algebric
Authored by Paun Mihai
Mathematics
8th Grade
Used 5+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Rezultatul calculului 3x∙(2x – 3) este
5x2 + 9x
5x2 - 9x
6x2 - 9x
-6x2 + 9x
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Fie expresia E(x)=2x2 – 5 – 3x + 7 – x2 + 2x valoarea expresiei E(0) este
x2 - x + 2
2
1
nu exista
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Rezultatul calculului 3x∙(2x – 3) este
5x2 + 9x
5x2 - 9x
6x2 - 9x
-6x2 + 9x
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Descompunerea in factori a expresiei a2 - b2 este
(a+b)(a-b)
a2+ b2
(a+b)2
(a-b)2
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Rezultatul calculului (√2 -√3 )(√2 + √3) este
1
-1
-5
0
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Rezultatul ( 4x – 1)2 este
16x2 -1
16x2 -8x + 1
16x2 + 1
16x2 -8x + 2
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