
Formule de calcul prescurtat
Authored by Gabriela Grigore
Mathematics
8th Grade
Used 2+ times

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17 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Scrieţi următoarele formule de calcul prescurtat:
a2-2ab+b2
a2+2ab+b2
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Scrieţi următoarele formule de calcul prescurtat:
m2-2mn+n2
m2+2mn+n2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calculaţi, folosind formule de calcul prescurtat (literele reprezintă numere reale):
x2+6x+9
9+6x-x2
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calculaţi, folosind formule de calcul prescurtat (literele reprezintă numere reale):
y2-10y+25
y2+10y+25
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Calculaţi, folosind formule de calcul prescurtat (literele reprezintă numere reale):
2x-49
x2-49
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(2a+3b)2=?
2a2+3b2
4a2+12ab+9b2
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
(2m – 5 )2 =
16m2+40m+25
4m2-20m+25
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