Ecuația de gradul al II-lea
Quiz
•
Mathematics
•
8th - 9th Grade
•
Hard
Bianca Fazecas
Used 7+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Care dintre următoarele răspunsuri este reprezentat de forma generală a ecuației de gradul doi?
ax3+bx2+cx+d=0
x2-1=0
ax2+bx+c=0
x2+2xy+y2=0
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dacă Δ=0, rădăcinile ecuației sunt:
Ecuația nu are valori reale.
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Care este formula Δ?
*pentru punctaj maxim la această întrebare, exponentul ridicării la pătrat (unde este cazul) se va nota x^y
4.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Se dă ecuația: x2+14x+24=0.
Identificați a, b, c din forma genereală a ecuației și calculați Δ.
*pentru punctaj maxim, se va nota: a=..., b=..., c=..., Δ=...
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cum se mai numește ecuația de gradul doi?
ecuație bipătratică
ecuație binomială
ecuație pătratică
nu are altă denumire
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
ADEVĂRAT sau FALS
Ecuația de gradul al II-lea este o ecuație polinomială.
ADEVĂRAT
FALS
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Se dă ecuația 2x2-9x-11=0 cu Δ=169.
Care sunt rădăcinile x1 și x2?
x1=11/2, x2=1
Ecuația nu are rădăcini reale
x1=x2=7
x1=8/7, x2=3
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