Formule de calcul prescurtat - 1

Formule de calcul prescurtat - 1

7th - 8th Grade

10 Qs

quiz-placeholder

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Formule de calcul prescurtat - 1

Formule de calcul prescurtat - 1

Assessment

Quiz

Mathematics

7th - 8th Grade

Hard

Created by

Peter Pop

Used 318+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

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

Media Image

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

Media Image

Scrieţi următoarele formule de calcul prescurtat: 

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

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

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

Media Image

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

Media Image

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

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

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Completaţi pentru a obţine propoziţii adevărate: 

(x+3)(x-3)=x2-9
(2x+3)(2x-3)=4x2-9
(2x+3)(2x+3)=4x2-9
(2x+3)(2x-3)=2x2-9

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