
Formule de calcul prescurtat.Test
Authored by LAZARCIUC RAMONA
Mathematics
8th Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Scrieţi următoarele formule de calcul prescurtat:
a2-2ab+b2
a2+2ab+b2
a2-2ab-b2
a2-b2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Scrieţi următoarele formule de calcul prescurtat:
m2-2mn+n2
m2+2mn+n2
m2+2mn-n2
m2-n2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Scrieţi următoarele formule de calcul prescurtat:
v2-u2
u2-2uv+v2
u2-v2
u2+2uv+v2
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calculaţi, folosind formule de calcul prescurtat (literele reprezintă numere reale):
y2-10y+25
y2+10y+25
y2-25
y2-10y-25
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Calculati
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
( x + y )2 =
x2+2xy+y2
x2-2xy+y2
x2+y2
x2-y2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
( a + 4 )( a – 4 ) =
a2+16
a2-4
a2-8a+16
a2-16
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