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Ecuatia de grad 2

Authored by Emilian Paraicu

Mathematics

8th - 9th Grade

Used 8+ times

Ecuatia de grad 2
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6 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fie x1x_1 si  x2x_2  radacinile ecuatiei 2x2 = 182x^{2^{\ }}=\ 18 , avem ca x1 +x2x_{1\ }+x_2 este egal cu:

1

-1

0

2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fie ecuatia 3x2 = 123x^{2\ }=\ 12 , radacina ei negativa este


0

-2

-1

-3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fie ecuatia  4x216=0-4x^2-16=0 . Radacina cea mai mica a ecuatiei este: 

Ecuatia nu are radacini reale.

-2

-1

2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fie x1 si x2x_{1\ }si\ x_2 radacinile ecuatiei  2x24x=02x^{2^{ }}-4x=0  , avem ca  x1 +x2x_{1\ }+x_2  este egal cu: 

2

-2

0

3

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Radacinile ecuatiei 2x2+2x+4=0-2x^2+2x+4=0 sunt: 

0 si 2

-1 si 2

-2 si 1

-2 si -1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Pentru ecuatia x23x4=0-x^2-3x-4=0  avem ca  Δ\Delta  este egal cu

4

-7

-5

0

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