2AT equazioni fratte

2AT equazioni fratte

9th Grade

10 Qs

quiz-placeholder

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2AT equazioni fratte

2AT equazioni fratte

Assessment

Quiz

Mathematics

9th Grade

Hard

Created by

Silvia Formaggia

Used 21+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Vero o falso?
la frazione algebrica  3x2x\frac{3-x}{2-x}  è l'opposta di  x3x2\frac{x-3}{x-2}  

vero 

falso

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

risolvi

 x2 = 54\frac{x}{2}\ =\ \frac{5}{4}  

 25\frac{2}{5}  

 52\frac{5}{2}  

4

10

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Determina le condizioni di esistenza della seguente equazione:

 x1x(x+1)=0\frac{x-1}{x\left(x+1\right)}=0  

 x1 e x+1x\ne-1\ e\ x\ne+1  

 x0 e x1x\ne0\ e\ x\ne-1  

 x=0 e x=1x=0\ e\ x=-1  

 x0x\ne0  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Dopo aver determinato le CE, risolvi la seguente equazione fratta numerica:

 2xx2x61x+2=0\frac{2x}{x^2-x-6}-\frac{1}{x+2}=0  

 3-3   non accettabile

 3-3  accettabile

 4-4  

 22  

nessuna delle alternative è corretta

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

La soluzione è

x = 1

soluzione non accettabile

x = -1

x = 2

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

la soluzione è

impossibile

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

k=-1

k=1

è sempre possibile

k=2

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