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výrazy - násobení závorky 1

Authored by Jan Kučera

Mathematics

8th Grade

Used 9+ times

výrazy - násobení závorky 1
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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


 (2u−3v)⋅4=\left(2u-3v\right)\cdot4=  

 8u−128u-12  

 −8u+12v-8u+12v  

 6u−7v6u-7v  

 8u−12v8u-12v  

5.

MULTIPLE SELECT QUESTION

30 sec • 1 pt


 −6⋅(4m−3n)=-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


 (3a2−2b)⋅2a=\left(3a^2-2b\right)\cdot2a=  

 6a3−2a6a^3-2a  

 6a3−4ab6a^3-4ab  

 2a3b2a^3b  

 −6a3+4ab-6a^3+4ab  

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt


 −3u2⋅(4u−5v2)=-3u^2\cdot\left(4u-5v^2\right)=  

 12u3−15u2v212u^3-15u^2v^2  

 −12u3−15u2v2-12u^3-15u^2v^2  

 −12u3+15u2v2-12u^3+15u^2v^2  

 12u3+15u2v212u^3+15u^2v^2  

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