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2. Equacions de segon grau

Authored by Jordi Finazzo-Agró

Mathematics

9th Grade

Used 7+ times

2. Equacions de segon grau
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15 questions

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1.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Resol l'equació: x² - 5x + 6 = 0

x = 2, x = 3

x = -2, x = -3

x = 1, x = 4

x = 0, x = 6

2.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Aplica la fórmula quadràtica a: 2x² + 3x - 5 = 0

x1 = 2, x2 = -1

3.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Quines són les solucions de: x² + 4x + 4 = 0?

x = 2

x = 0

x = -4

x = -2

4.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Resol l'equació: 3x² - 12 = 0

x = 4 or x = -4

x = 1 or x = -1

x = 2 or x = -2

x = 3 or x = -3

5.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Aplica la fórmula quadràtica a: x² - 2x - 8 = 0

x = 2, x = -4

x = 0, x = 8

x = 3, x = -3

x = 4, x = -2

6.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Quines són les arrels de: 5x² + 10x = 0?

x = 2, x = -3

x = 0, x = 1

x = 1, x = -5

x = 0, x = -2

7.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Resol l'equació: x² + 6x + 9 = 0

x = -3

x = 0

x = -6

x = 3

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