9th Class Mathematics Chapter 6 Online MCQ Test With Answers PDF English Medium (Algebraic Manipulation)

Mathematics 9th Class English Medium Unit 6 Online Test

Sr. #	Questions	Answers Choice
1	LCM of a²+b² and a⁴-b⁴ is:	a<sup>2</sup>+b<sup>2</sup> a<sup>2</sup>-b<sup>2</sup> a<sup>4</sup>-b<sup>4</sup> a-b
2	LCM of 15x² , 45xy and 30xy is:	90xyz 90x<sup>2</sup>yz 15xyz 15x<sup>2</sup>yz
3	HCF of x²+3x+2, x²+4x+3 and x²+5x+4 is:	x+1 (x+1)(x+2) (x+3) (x+4)(x+1)
4	HCF of a²-b² and a³-b³ is:	a-b a+b a<sup>2</sup>=ab+b<sup>2</sup> a<sup>2</sup>-ab+b<sup>2</sup>
5	HCF of x²-5x+6 and x²-x-6 is:	x-3 x+2 x<sup>2</sup>-4 x-2
6	HCF of a³+b³ and a²-ab+b² is:	a+b a<sup>2</sup>-ab+b<sup>2</sup> (a-b)<sup>2</sup> a<sup>2</sup>+b<sup>2</sup>
7	HCF of x-2 and x+x-6 is:	x<sup>2</sup>+x-6 x+3 x-2 x+2
8	HCF of 5x²y² and 20x³y³ is:	5x<sup>2</sup>y<sup>2</sup> 20x<sup>3</sup>y<sup>3</sup> 10x<sup>5</sup>y<sup>5</sup> 5xy
9	HCF of p³q-pq³ and p⁵q²-p²q⁵ is:	pq(p<sup>2</sup>-q<sup>2</sup>) pq(p-q) p<sup>2</sup>q<sup>2</sup>(p-q) pq(p<sup>3</sup>-q<sup>3</sup>)
10	To find HCF, we use following method:	By factorization By division Both a and b None
11	If two are more algebraic expression are given then their common factors of highest power is called of the expressions:	LCM HCF Multiplication Square root