многочлени

многочлени

7th Grade

12 Qs

quiz-placeholder

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многочлени

многочлени

Assessment

Quiz

Mathematics

7th Grade

Hard

CCSS
6.EE.A.3

Standards-aligned

Created by

Диана Данова

Used 7+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Вярното разлагане на израза 16x2y3 – 8xy2 – 12x3y4 е:

4x2y2(4y – 2 – 12xy2)

xy(16xy2 – 8y2 – 12xy2)

4xy2(4xy – 2 – 3x2y2)

4xy2(4xy – 2y – 3x2y2)

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Нормалният вид на многочлена (2a + 5)2 + (5 – 2a)2 е:

8a2 + 50

25 – 4a4

4a2 + 10

8a4 + 50

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Кой от многочлените е тъждествено равен на израза: (5х –3)( 3 +5х)

25.х2 – 9

9 – 25.х2

10.х-9

10.х2-9

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Степента на едночлена 7а2х2у3ах е:

7

6

9

5

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Коефициентът пред x в нормалния вид на многочлена

е равен на: (-x-1)2+ (x+3).(x2 -3x+9) -2.x(x+1)

–2

4

2

0

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Изразът    5x(a7)+3y(a7)z(7a)5x\left(a-7\right)+3y\left(a-7\right)-z\left(7-a\right)      
е тъждествено равен на:

 (a7)(5x+3yz)\left(a-7\right)\left(5x+3y-z\right)  

 (a7)(5x+3y+z)\left(a-7\right)\left(5x+3y+z\right)  

 (a7)(5x3yz)\left(a-7\right)\left(5x-3y-z\right)  

 (a7)(5x3y+z)\left(a-7\right)\left(5x-3y+z\right)  

Tags

CCSS.6.EE.A.3

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Единият от множителите при разлагането на многочлена у2 – х2 + 2х – 1 на множители е:

у – х – 1

у + х + 1

у – х + 1

х + 1 – у

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