Wyrażenia algebraiczne - sprawdzian kl.7

Wyrażenia algebraiczne - sprawdzian kl.7

6th - 8th Grade

11 Qs

quiz-placeholder

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Wyrażenia algebraiczne - sprawdzian kl.7

Wyrażenia algebraiczne - sprawdzian kl.7

Assessment

Quiz

Mathematics

6th - 8th Grade

Practice Problem

Hard

Created by

Dorota Urbaniak

Used 41+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Po uporządkowaniu jednomianu p·4u·(-5)·p·0,5u2 otrzymamy jednomian:

-20pu

-10p2u3

20p2u3

-10pu

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Dla x = −1 wyrażenie −9(5x + 7) przyjmuje wartość:

-1

18

6

-18

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Dane są cztery prostokąty o bokach:

I 4x i (5 + y)

II 4x i 5y

III 10x i 2y

IV (5 + x) i 4y

Które z tych prostokątów mają jednakowe pola powierzchni?

I i II

III i IV

I i IV

II i III

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jednomianem jest wyrażenie:

7xy

7+x+y

7(x+y)

(7+x)y

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 x2xx^2-x 
x=7

49

7

14

42

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Po redukcji wyrazów podobnych w wyrażeniu

2x2 + 8y + 3x2 - 8y + 1

otrzymamy:

5x2+1

5x2+16y+1

6x2+1

5x2-16y+1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 2x3x(x)=2x\cdot3x\cdot\left(-x\right)=  

 6x3-6x^3  

 6x2-6x^2  

 4x4x  

 4x34x^3  

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