ข้อสอบ การแยกตัวประกอบ ม.2 โดย  พี่นัท

ข้อสอบ การแยกตัวประกอบ ม.2 โดย พี่นัท

8th Grade

20 Qs

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ข้อสอบ การแยกตัวประกอบ ม.2 โดย  พี่นัท

ข้อสอบ การแยกตัวประกอบ ม.2 โดย พี่นัท

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

Created by

Nuttz Puncharat

Used 73+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which of the following is not correct?

21x3y228x2y3=7xy(3x2y4xy2)21x^3y^2-28x^2y^3=7xy\left(3x^2y-4xy^2\right)

24x4z2+18x3z3=6x3z2(4x+3z)24x^4z^2+18x^3z^3=6x^3z^2(4x+3z)

y3+4y=y(y2+4)y^3+4y=y(y^2+4)

7x2z3+63xz5=7xz3(x9z2)-7x^2z^3+63xz^5=-7xz^3(x-9z^2)

None of these

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which of the following is correct?

5(x+y)3b(x+y)=2b(x+y)5(x+y)-3b(x+y)=2b(x+y)

5(x+y)3b(x+y)=15b(x+y)5(x+y)-3b(x+y)=-15b(x+y)

5(x+y)3b(x+y)=(53b)(x+y)5(x+y)-3b(x+y)=(5-3b)(x+y)

5(x+y)3b(x+y)=(5x+5y)(3bx3by)5(x+y)-3b(x+y)=(5x+5y)(-3bx-3by)

None of these

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 Factor.....ab2ac+bc2c2Factor.....ab-2ac+bc-2c^2  

 (b+2c)(ac)(b+2c)(a-c)  

 (b2c)(ac)(b-2c)(a-c)  

 (b+2c)(a+c)(b+2c)(a+c)  

 (b2c)(a+c)(b-2c)(a+c)  

None of these

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 Factor   (ab)3+2(ab)2+(ab)Factor\ \ \ (a-b)^3+2(a-b)^2+(a-b)  

 (ab)(ab+1)(ab+1)(a-b)(a-b+1)(a-b+1)  

 (ab)(ab+1)(ab1)(a-b)(a-b+1)(a-b-1)  

 (ab)(ab+1)(a+b1)(a-b)(a-b+1)(a+b-1)  

 (ab)(a+b+1)(a+b+1)(a-b)(a+b+1)(a+b+1)  

None of these

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 Factor.....x2+15x+54Factor.....x^2+15x+54  

 (x3)(x18)(x-3)(x-18)  

 (x+3)(x+18)(x+3)(x+18)  

 (x+9)(x+6)(x+9)(x+6)  

 (x9)(x6)(x-9)(x-6)  

None of these

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 Factor   13223x+x2Factor\ \ \ 132-23x+x^2  

 (11x)(12x)(11-x)(12-x)  

 (11+x)(12+x)(11+x)(12+x)  

 (11x)(12+x)(11-x)(12+x)  

 (11+x)(12x)(11+x)(12-x)  

None of these

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 Factor   15x211x+2Factor\ \ \ 15x^2-11x+2  

 (3x+2)(5x+1)(3x+2)(5x+1)  

 (3x1)(5x2)(3x-1)(5x-2)  

 (3x2)(5x1)(3x-2)(5x-1)  

 (3x+1)(3x+2)(3x+1)(3x+2)  

None of these

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