Pilnie kvadrātvienādojumi

Pilnie kvadrātvienādojumi

8th Grade

14 Qs

quiz-placeholder

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Pilnie kvadrātvienādojumi

Pilnie kvadrātvienādojumi

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

Created by

Indra Pauliņa

Used 16+ times

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14 questions

Show all answers

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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