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QUIZ

8th
grade

Mathematics

74%

accuracy

18

plays

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4 years

Mathematics

8th

grade

Formule de calcul prescurtat

user

18
plays

12 questions

12 questions

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1. Multiple Choice
1 minute
1 pt
Scrieţi următoarele formule de calcul prescurtat:
a²-2ab+b²
a²+2ab+b²
2. Multiple Choice
1 minute
1 pt
Scrieţi următoarele formule de calcul prescurtat:
m²-2mn+n²
m²+2mn+n²
3. Multiple Choice
1 minute
1 pt
Scrieţi următoarele formule de calcul prescurtat:
$u^2-v^2$
u²-2uv+v²
4. Multiple Choice
2 minutes
1 pt
Calculaţi, folosind formule de calcul prescurtat (literele reprezintă numere reale):
x²+6x+9
9+6x-x²
5. Multiple Choice
2 minutes
1 pt
Calculaţi, folosind formule de calcul prescurtat (literele reprezintă numere reale):
y²-10y+25
y²+10y+25
6. Multiple Choice
1 minute
1 pt
Calculaţi, folosind formule de calcul prescurtat (literele reprezintă numere reale):
2x-49
x²-49
7. Multiple Choice
3 minutes
1 pt
(2a+3b)²=?
2a²+3b²
4a²+12ab+9b²
8. Multiple Choice
3 minutes
1 pt
(2m – 5 )²=
16m²+40m+25
4m²-20m+25
9. Multiple Choice
2 minutes
1 pt
(5x + 3) ∙ (5x – 3) = ...
25x² - 30x + 9
25x ² -9
10. Multiple Choice
1 minute
1 pt
$\left(a+b+c\right)^2=$
$a^2+b^2+c^2+2ab+2ac+2bc$
$a^2+b^2+c^2$
11. Multiple Choice
5 minutes
1 pt
(x² + x + 1)²=
x⁴ + 2x³ + 3x² + 2x + 1
x⁴ + 2x³ + 2x² + 2
12. Multiple Choice
5 minutes
1 pt
$\left(x^2-x+3\right)^2=$
$x^4+x^2+9$
$x^4-2x^3+7x^2-6x+9$
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