[MTP] Toán 8 - Ôn tập HKI

[MTP] Toán 8 - Ôn tập HKI

8th Grade

20 Qs

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[MTP] Toán 8 - Ôn tập HKI

[MTP] Toán 8 - Ôn tập HKI

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Medium

Created by

T Nhung

Used 28+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 x22x+1 = ?x^2-2x+1\ =\ ?  

 (x  1)2\left(x\ -\ 1\right)^2  

 (x+1)2\left(x+1\right)^2  

 x21x^2-1  

 x2+1x^2+1  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 x2+4x+4=?x^2+4x+4=?  

 x2+4x^2+4  

 x24x^2-4  

 (x2)2\left(x-2\right)^2  

 (x+2)2\left(x+2\right)^2  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (2x1)(2x+1)=?\left(2x-1\right)\left(2x+1\right)=?  

 2x212x^2-1  

 4x214x^2-1  

 (2x1)2\left(2x-1\right)^2  

 (2x+1)2\left(2x+1\right)^2  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Kết quả phân tích đa thức

 x31x^3-1  thành nhân tử là:

 (x1)(x2x+1)\left(x-1\right)\left(x^2-x+1\right)  

 (x+1)(x2x+1)\left(x+1\right)\left(x^2-x+1\right)  

 (x+1)(x2+x+1)\left(x+1\right)\left(x^2+x+1\right)  

 (x1)(x2+x+1)\left(x-1\right)\left(x^2+x+1\right)  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Kết quả phân tích đa thức

 2x2x2x^2-x  thành nhân tử là: 

 2x(x1)2x\left(x-1\right)  

 x(2x1)x\left(2x-1\right)  

 x(2x21)x\left(2x^2-1\right)  

 2x(x21)2x\left(x^2-1\right)  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Kết quả phân tích đa thức

 2(x y) + ax  ay2\left(x-\ y\right)\ +\ ax\ -\ ay  là:

 2a(xy)2a\left(x-y\right)  

 (a + 2)(x  y)\left(a\ +\ 2\right)\left(x\ -\ y\right)  

 (x + y)(a  2)\left(x\ +\ y\right)\left(a\ -\ 2\right)  

 (x  y)(a  2)\left(x\ -\ y\right)\left(a\ -\ 2\right)  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Biểu thức nào không phải là phân thức

1x\frac{1}{x}

00

2x212x^2-1

x10\frac{x-1}{0}

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