Итоговая работа по алгебре

Итоговая работа по алгебре

7th Grade

14 Qs

quiz-placeholder

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Итоговая работа по алгебре

Итоговая работа по алгебре

Assessment

Quiz

Mathematics

7th Grade

Hard

Created by

Olga Fedorova

Used 56+ times

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14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Найдите значение буквенного выражения   3y2cy+2,5c\frac{3y-2c}{y+2,5c}   при с=2,  у= - 4

-16

16

20

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 3a2b(5a3b)3a^2b\left(-5a^3b\right)  - преобразуйте в одночлен стандартного вида

 15a5b2-15a^5b^2  

 15a5b215a^5b^2  

 15a5b-15a^5b  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Упростите выражение: 3а + 4а(а – 5)

4a2+17a4a^2+17a

4a217a4a^2-17a

4a2+23a4a^2+23a

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 a2×(a3)4a7\frac{a^2\times\left(a^3\right)^4}{a^7}  -упростите выражение

 a7a^7  

 a2a^2  

 a9a^9  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Решите уравнение: -8у = 4

-2

2

12\frac{-1}{2}

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 64p281q264p^2-81q^2  -разложите на множители

 (8p9q)2\left(8p-9q\right)^2  

 (8p+9q)2\left(8p+9q\right)^2  

 (8p9q)(8p+9q)\left(8p-9q\right)\left(8p+9q\right)  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 (5a3b)2\left(5a-3b\right)^2  - представьте в виде многочлена

 25a230ab9b225a^2-30ab-9b^2  

 25a29b225a^2-9b^2  

 25a230ab+9b225a^2-30ab+9b^2  

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