Phân tích đa thức thành nhân tử

Phân tích đa thức thành nhân tử

12th Grade

10 Qs

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Phân tích đa thức thành nhân tử

Phân tích đa thức thành nhân tử

Assessment

Quiz

Mathematics

12th Grade

Hard

Created by

Minh Huynh Thoai

Used 30+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phân tích đa thức x26x+8x^2-6x+8 thành nhân tử ta được 

 (x4)(x2)\left(x-4\right)\left(x-2\right)  

 (x4)(x+2)\left(x-4\right)\left(x+2\right)  

 (x+4)(x2)\left(x+4\right)\left(x-2\right)  

 (x4)(2x)\left(x-4\right)\left(2-x\right)  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Đa thức 25a2+2abb225-a^2+2ab-b^2  được phân tích thành

 (5+ab)(5ab)\left(5+a-b\right)\left(5-a-b\right)  

 (5+a+b)(5ab)\left(5+a+b\right)\left(5-a-b\right)  

 (5+a+b)(5a+b)\left(5+a+b\right)\left(5-a+b\right)  

 (5+ab)(5a+b)\left(5+a-b\right)\left(5-a+b\right)  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phân tích đa thức a4+a3+a3b+a2ba^4+a^3+a^3b+a^2b  thành nhân tử ta được 

 a2(a+b)(a+1)a^2\left(a+b\right)\left(a+1\right)  

 a(a+b)(a+1)a\left(a+b\right)\left(a+1\right)  

 (a2+ab)(a+1)\left(a^2+ab\right)\left(a+1\right)  

 (a+b)(a+1)\left(a+b\right)\left(a+1\right)  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Đa thức x2+x2ax2ax^2+x-2ax-2a được phân tích thành 

 (x+2a)(x1)\left(x+2a\right)\left(x-1\right)  

 (x2a)(x+1)\left(x-2a\right)\left(x+1\right)  

 (x+2a)(x+1)\left(x+2a\right)\left(x+1\right)  

 (x2a)(x1)\left(x-2a\right)\left(x-1\right)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt


Tính nhanh
 377+763877.237\cdot7+7\cdot63-8\cdot7-7.2  

700

620

640

630

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phân tích đa thức x3y3+6x2y2+12xy+8x^3y^3+6x^2y^2+12xy+8  thành nhân tử ta được

 (xy+2)3\left(xy+2\right)^3  

 (xy+8)3\left(xy+8\right)^3  

 x3y3+8x^3y^3+8  

 (x3y3+2)3\left(x^3y^3+2\right)^3  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Chọn câu sai.

4x2+4x+1=(2x+1)24x^2+4x+1=\left(2x+1\right)^2

9x224xy+16y2=(3x4y)29x^2-24xy+16y^2=\left(3x-4y\right)^2

x24+2xy+4y2=(x2+2y)2\frac{x^2}{4}+2xy+4y^2=\left(\frac{x}{2}+2y\right)^2

x24+2xy+4y2=(x4+2y)2\frac{x^2}{4}+2xy+4y^2=\left(\frac{x}{4}+2y\right)^2

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