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Formule de calcul prescurtat

Authored by Gabriela Grigore

Mathematics

8th Grade

Used 2+ times

Formule de calcul prescurtat
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17 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Scrieţi următoarele formule de calcul prescurtat:

a2-2ab+b2

a2+2ab+b2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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Scrieţi următoarele formule de calcul prescurtat:

m2-2mn+n2

m2+2mn+n2

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

x2+6x+9

9+6x-x2

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

y2-10y+25

y2+10y+25

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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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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