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แยกตัวประกอบพหุนามดีกรีสูงกว่าสอง

Authored by Thalanrat Thitiwalankul

Mathematics

9th Grade

Used 21+ times

แยกตัวประกอบพหุนามดีกรีสูงกว่าสอง
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16 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

ข้อใดเป็นการแยกตัวประกอบของ x31x^3-1  

 (x+1)(x2x+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)  

 (x1)(x22x+1)\left(x-1\right)\left(x^2-2x+1\right)  

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

2.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

ข้อใดแยกตัวประกอบได้ถูกต้อง

3.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

4.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

ข้อใดเป็นการแยกตัวประกอบของ
 27a38b327a^3-8b^3  

 (3a4b)(3a26ab+4b2)\left(3a-4b\right)\left(3a^2-6ab+4b^2\right)  

 (3a2b)(9a2+6ab+4b2)\left(3a-2b\right)\left(9a^2+6ab+4b^2\right)  

 (3a+2b)(3a26ab+4b2)\left(3a+2b\right)\left(3a^2-6ab+4b^2\right)  

 (3a+4b)(9a26ab+16b2)\left(3a+4b\right)\left(9a^2-6ab+16b^2\right)  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (3x1)3(2x)3\left(3x-1\right)^3-\left(2x\right)^3  

แยกตัวประกอบได้ตรงกับข้อใด

 (x1)(19x28x+1)\left(x-1\right)\left(19x^2-8x+1\right)  

 (x1)(7x24x+1)\left(x-1\right)\left(7x^2-4x+1\right)  

 (5x1)(19x24x+1)\left(5x-1\right)\left(19x^2-4x+1\right)  

 (5x1)(7x28x+1)\left(5x-1\right)\left(7x^2-8x+1\right)  

7.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

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