
Pilnie kvadrātvienādojumi
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
Indra Pauliņa
Used 16+ times
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14 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nosaki kvadrātvienādojuma koeficientus x2-x+5=0
a=1, b=1, c=0
a=0, b=1, c=5
a=1, b=-1, c=5
a=0, b=0, c=5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atzīmē, kurš no dotajiem kvadrātvienādojumiem atbilst , ja koeficienti ir a=3, b=0, c=1
x2+1=0
3x2+1=0
x2+3x+1=0
x2+3=0
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aprēķini vienādojuma -2x2+5x+3=0 diskriminantu
D=49
D=7
D=1
D=-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ja diskriminanta vērtība ir 0, tad dotajam vienādojumam
nav sakņu
ir divas vienādas saknes
ir divas dažādas saknes
ir divas saknes, kuru vērtības ir pretējas
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Atrisini doto vienādojumu x2+8x+15=0. (atzīmē, kuras ir vienādojuma saknes)
x=3
x=5
x=-3
x=-5
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Atrisini doto vienādojumu 5x2-8x+3=0
x=1 un x=0.6
Sakņu nav
x=-1 un x=-0.6
x=2 un x=-0.8
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4x2+3x+7=0
x=4 un x=7
D<0, sakņu nav
D>0, bet nemāku atrast saknes
x=0 un x=-5
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