Тождества

Тождества

7th Grade

10 Qs

quiz-placeholder

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Тождества

Тождества

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Medium

Created by

Denis Meksheev

Used 38+ times

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10 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

 5x + 3x = 5x\ +\ 3x\ =\   

 8xx8xx  

 8x8x  

 9x9x  

 88  

2.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Какое свойство используется ?

 a+b=b+aa+b=b+a  

Переместительное

Сочетательное

Распределительное

дистрибутивное

3.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Раскройте скобки

 2(x3)=2\left(x-3\right)=  

 2x62x-6  

 2x32x-3  

 2x52x-5  

 x  1x\ -\ 1  

4.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Приведите подобные слагаемые

 12a  7a  3=12a\ -\ 7a\ -\ 3=  

 2a2a  

 5a35a-3  

 8a8a  

 19a319a-3  

5.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Приведите подобные слагаемые

 3a + 5b2a10b=3a\ +\ 5b-2a-10b=  

 4ab-4ab  

 a5ba-5b  

 8ba8b-a  

 5a15b5a-15b  

6.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Найди тождественно равное выражение

 2(a3)2\left(a-3\right)  

 a 3a\ -3  

 2a62a-6  

 a6a-6  

 2a12a-1  

7.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Какое из выражений тождественно 0?

a3+aa-3+a

2x+1x2x+1-x

55a5-5a

4x4x4x-4x

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