Vytýkání 2

Vytýkání 2

8th Grade

10 Qs

quiz-placeholder

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Vytýkání 2

Vytýkání 2

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

Created by

Hana Hedbávná

Used 20+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vytkněte největšího společného dělitele výrazu

 18d224d3=18d^2-24d^3=  

 6d(3d4d2)6d\left(3d-4d^2\right)  

 3d(6d8d2)3d\left(6d-8d^2\right)  

 8d2(23d)8d^2\left(2-3d\right)  

 6d2(34d)6d^2\left(3-4d\right)  

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 9a2b6ab2=9a^2b-6ab^2=  

 3ab(3a2b)3ab\left(3a-2b\right)  

 3(3a2b2ab2)3\left(3a^2b-2ab^2\right)  

 ab(9a6b)ab\left(9a-6b\right)  

 6ab2+9a2b-6ab^2+9a^2b  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 5a +9b3=-5a\ +9b-3=  

 (5a+9b3)-\left(5a+9b-3\right)  

 (5a+9b3)-\left(-5a+9b-3\right)  

 5(a9b3)-5\left(a-9b-3\right)  

 (5a9b+3)-\left(5a-9b+3\right)  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Rozložte na součin
 mnm=mn-m=  

 n(m1)n\left(m-1\right)  

 m(n1)m\left(n-1\right)  

 m(n)m\left(n\right)  

 (mn+m)-\left(mn+m\right)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 ab+ac+a=ab+ac+a=  

 a(b+c)+1a\left(b+c\right)+1  

 a(b+c)a\left(b+c\right)  

 a(b+c+1)a\left(b+c+1\right)  

 (abaca)-\left(ab-ac-a\right)  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x(y1)+3(y1)=x\left(y-1\right)+3\left(y-1\right)= 

 Rozložte na součin

 x(y1)3(y1)x\left(y-1\right)3\left(y-1\right)  

 (y1)(x+3)\left(y-1\right)\left(x+3\right)  

 xyy+3y3xy-y+3y-3  

 3x(y1)3x\left(y-1\right)  

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 m96m+19=m-9-6m+19=  



Nejprve sečti a pak uprav na součin vytýkáním:

 5(m2)-5\left(m-2\right)  

 5(m2)5\left(m-2\right)  

 (5m+10)-\left(5m+10\right)  

 2(5m)2\left(5-m\right)  

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