
квадрат теңдеу
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Dina Dosbolova
Used 4+ times
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8 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Квадрат теңдеудің дискриминанты неге тең?
D = b2– 4 ac
D = b2 + 4 ac.
D = b– 4 ac.
D = b+ 4 ac.
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Егер D > 0 болса, онда ax2 + bx + c = 0, a ≠ 0 теңдеуінің ең болмағанда ...
бір нақты түбірі болады
түбірлері болмайды
екі нақты түбірі болады
шексіз көп түбірі болады
3.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Егер D = 0 болса, онда ax2 + bx + c = 0, a ≠ 0 теңдеуінің ....
шексіз кқп түбірі болады
түбірлері болмайды
таңбалары әртүрлі екі түбірі болады
өзара тең екі түбірі болады
4.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
ax2 + bx + c = 0, a ≠ 0 теңдеуінде b = c = 0 болса, онда ...
ax = 0; шешуі: х = 0;
ax2 + bx = 0; шешуі: x(ax + b) = 0; х = 0; x= – b/a;
ax2 = 0; шешуі: х = 0;
ax2 + c = 0;
5.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Виет теоремасы не дейді?
x1+x2=p; x1*x2=-q
x1+x2=-p; x1*x2=-q
x1+x2=p; x1*x2=q
x1+x2=-p; x1*x2=q
6.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Квадрат үшмүшені көбейткіштерге жіктеу формуласы?
ax2 + bx + c=(x-x1)(x-x2)
ax2 + bx + c=a(x-x1)(x-x2)
ax2 + bx + c=a(x+x1)(x-x2)
ax2 + bx + c=a(x+x1)(x+x2)
7.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Квадрат теңдеудің D>0 болғандағы түбірлерінің формуласы?
8.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
Квадрат теңдеудің D=0 болғандағы түбірлерінің формуласы?
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