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Tema 1. Equacions i sistemes

Authored by Rosa Martinez

Mathematics

9th - 10th Grade

Used 5+ times

Tema 1. Equacions i sistemes
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7 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 x12+x+13=16\frac{x-1}{2}+\frac{x+1}{3}=-\frac{1}{6}  té per solució

x=2

x=0

x=-1

No té solució, és incompatible

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Troba un nombre tal que el seu triple menys 5 siga igual al seu doble més tres.

No existeix aquest nombre.

x=8

x=-8

x=2

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

La solució del sistema

(13, 2)

(2, 13)

És un sistema incompatible

(1, 1)

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 5x22x=05x^2-2x=0  les seues solucions són

x=0; x=1

x=2; x=5

 x=0; x=52x=0;\ x=\frac{5}{2}  

 x=0; x=25x=0;\ x=\frac{2}{5}  

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 3x24=0\sqrt{3x-2}-4=0  la o les solucions

x=6

x=0; x=6

x=8

x=16

6.

MULTIPLE CHOICE QUESTION

10 mins • 1 pt

Media Image

Les solucions del sistema

(-6,2); (18, 2)

(18,-6); (2, 2)

(-6, 18); (2, 2)

(-6, 18)

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

 x34x2+4x=0x^3-4x^2+4x=0  té per solucions

x=2; x=4

x=0; x=4

x=0

x=0; x=2

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