výrazy - násobení závorky 1

výrazy - násobení závorky 1

8th Grade

10 Qs

quiz-placeholder

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výrazy - násobení závorky 1

výrazy - násobení závorky 1

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Medium

Created by

Jan Kučera

Used 7+ times

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10 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

30 sec • 1 pt


 a(a+3)=a\cdot\left(a+3\right)=  

 a+3a+3  

 a2+3aa^2+3a  

 3a23a^2  

 4a4a  

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt


 (b+5)a=\left(b+5\right)\cdot a=  

nejde

 5a+b5a+b  

 ab+5aab+5a  

 5ab5ab  

3.

MULTIPLE SELECT QUESTION

30 sec • 1 pt


 3(2a+3b)=3\cdot\left(2a+3b\right)=  

 6a+9b6a+9b  

 15ab15ab  

 5a+6b5a+6b  

 6a+6b6a+6b  

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt


 (2u3v)4=\left(2u-3v\right)\cdot4=  

 8u128u-12  

 8u+12v-8u+12v  

 6u7v6u-7v  

 8u12v8u-12v  

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt


 6(4m3n)=-6\cdot\left(4m-3n\right)=  

 24m+18n-24m+18n  

 6mn-6mn  

 21mn-21mn  

 24m+18mn-24m+18mn  

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt


 (3a22b)2a=\left(3a^2-2b\right)\cdot2a=  

 6a32a6a^3-2a  

 6a34ab6a^3-4ab  

 2a3b2a^3b  

 6a3+4ab-6a^3+4ab  

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt


 3u2(4u5v2)=-3u^2\cdot\left(4u-5v^2\right)=  

 12u315u2v212u^3-15u^2v^2  

 12u315u2v2-12u^3-15u^2v^2  

 12u3+15u2v2-12u^3+15u^2v^2  

 12u3+15u2v212u^3+15u^2v^2  

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