
Quiz equazioni
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Mathematics
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quali delle seguenti equazioni è fratta?
x/2 = 1 + 7x
3x - 5 = 7x + 8
5/x-3 + x/2 = 7
x+2/3 - x-3/2 = - 7/8
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual è la soluzione della seguente equazione?
4x + 2 = 3x - 4
x = 1
x = - 6
x = 2
x = 1/2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Due equazioni si dicono equivalenti se:
hanno le stesse incognite
hanno gli stessi coefficienti
hanno le stesse soluzioni
sono dello stesso grado
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Un'equazione si dice impossibile se:
ha più incognite
ha soluzioni che non sono intere
se è risolvibile con i metodi elementari
non ha nessuna soluzione
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Risolvi la seguente equazione di secondo grado: x² = 16
x = 4
x = 4 ; x = -4
x = 8 ; x = -8
impossibile
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
La disequazione x² + 1 > 0 è verificata per
ogni valore di x
ogni valore di x tranne per x = -1
x < -1 o x > 1
-1 < x > 1
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual è il dominio dell’equazione
per nessun valore di x
per qualsiasi valore di x
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