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calcul prescurtat

Authored by Paun Mihai

Mathematics

8th Grade

Used 5+ times

calcul prescurtat
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12 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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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

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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

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Scrieţi următoarele formule de calcul prescurtat: 

v2-u2
u2-2uv+v2
u2-v2
u2+2uv+v2

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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Calculaţi, folosind formule de calcul prescurtat (literele reprezintă numere reale): 

x2-6x+9
9+6x-x2
9-6x+x2
9+6x+x2

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

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Calculaţi, folosind formule de calcul prescurtat (literele reprezintă numere reale): 

y2-10y+25
y2+10y+25
y2-25
y2-10y-25

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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Calculaţi, folosind formule de calcul prescurtat (literele reprezintă numere reale): 

2x-49
x2-14
x2-49
x2-14x+49

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculati (2x + 3)2\left(2x\ +\ 3\right)^2   

 2x2+92x^2+9  

 4x2+12x+94x^2+12x+9  

 4x2+94x^2+9  

 4x2+12x4x^2+12x  

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