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équations second degré 2

Authored by Valerie Bout

Mathematics

4th - 12th Grade

Used 25+ times

équations second degré 2
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21 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Les coefficients de l'équation

2x2 + 4x - 15 = 0 sont

a = 2 b = 4 c = -15

a = 2x2 b = 4x c = -15

a = 2 b = -4 c = 15

a =2 b = 4 c = 15

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Le discriminant de x2 + 2x - 35 = 0 est :

Δ\Delta = -136

Δ\Delta = 144

Δ\Delta = -279

Δ\Delta = 1217

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Les solutions de l'équation

x2 + 2x - 35 = 0 sont :

x1 = -5 et x2 = 7

x1 = 5

x1 = 5 et x2 = -7

pas de solution

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Les coefficients de l'équation

-1x2 - 8x - 12 = 0 sont :

a = 1 b = 8 et c= -12

a = -1 b = -8 et c= -12

a = 1 b = -8 et c= -12

a = 1 b = -8 et c= -12

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Le discriminant de l'équation

-4x2 - 8x + 12 = 0 est :

Δ\Delta = -256

Δ\Delta = 256

Δ\Delta = 0

Δ\Delta = -368

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Les solutions de l'équation

-4x2 - 8x + 12 = 0 sont :

pas de solution

x1 = -4 et x2 = -8

x1 = -1 et x2 = 3

x1 = 1 et x2 = -3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Les coefficients de l'équation

4x2 - 12x - 144= 0 sont :

a= 4 ; b= -12 et c= -144

a= -4 ; b= -12 et c= 144

a= 4 ; b=12 et c= 144

a= 4x2 ; b= -12x et c= 144

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