
Equazioni numeriche e letterali di 2 grado
Authored by Giovanni Spitaleri
Mathematics
10th Grade

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14 questions
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1.
MULTIPLE CHOICE QUESTION
5 mins • 2 pts
Quali delle seguenti equazioni ha tra le sue soluzioni x = - 3?
x² = - 9
x² = 3x
x² + x = 6
x² - x -3 = 0
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Qual è il segno del discriminante se l'equazione di secondo grado ha due soluzioni reali distinte?
Non può essere determinato
Negativo
Positivo
Nullo
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Quali sono le soluzioni dell'equazione 123456789x² = 123456789?
x = 1
x = 1 e x = -1
l'equazione non ha soluzione
x = 0 soluzione doppia
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Quale delle seguenti equazioni ha come soluzioni x = 1 e x = -5?
x² + 2x - 5 = 0
x² + 6x + 5 = 0
x² + 4x - 5 = 0
x² - 6x - 5 = 0
5.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
Qual è la soluzione dell'equazione x² - 5x + 6 = 0?
x1 = -1, x2 = 6
x1 = -3, x2 = -2
x1 = 2, x2 = 3
x1 = 6, x2 = -1
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Qual è l'equazione di secondo grado?
y = a^x
0 = ax² + bx + c
0 = a(x - h)² + k - ax²
y = mx + q
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Quale è il discriminante dell'equazione di secondo grado?
b² - 4ac
2ab - c
b² + 4ac
a² - b²
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