Question # 1

HCF of a³+b³ and a²-ab+b² is:

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a+b

a²-ab+b²

(a-b)²

a²+b²

LCM of 15x² , 45xy and 30xy is:

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90xyz

90x²yz

15xyz

15x²yz

We can find square root by the method

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By factorization

By division

Both a and b

None

HCF of x²-5x+6 and x²-x-6 is:

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x-3

x+2

x²-4

x-2

H.C.F of p³q - pq³ and p⁵q² - p²q⁵ is _________:

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pq(p²-q²)

pq(p-q)

p²q²(p-q)

pq(p³-q³)

H.C.F of x²-4 and 2x²+x-6:

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(x-2)

(x+2)

(2x-3)

(x+2)(2x-3)

LCM of a²+b² and a⁴-b⁴ is:

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a²+b²

a²-b²

a⁴-b⁴

a-b

HCF of a²-b² and a³-b³ is:

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a-b

a+b

a²=ab+b²

a²-ab+b²

H.C.F of 39x⁷y³z and 91x⁵y⁶z⁷ is:

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13x⁷y⁶z²

13x⁵y³z

91x⁵y⁶z²

91x⁵y³z

H.C.F of x-2 and x²+x-6 is _______:

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x²+x-6

x+3

x-2

x+2

To find HCF, we use following method:

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By factorization

By division

Both a and b

None

HCF of p³q-pq³ and p⁵q²-p²q⁵ is:

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pq(p²-q²)

pq(p-q)

p²q²(p-q)

pq(p³-q³)

H.C.F of 5x²y² and 20x³y³ is __________

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5x²y²

20x³y³

100x⁵y⁵

5xy

If two are more algebraic expression are given then their common factors of highest power is called of the expressions:

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LCM

HCF

Multiplication

Square root

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Mathematics 9th Class English Medium Unit 6 Online Test MCQs With Answers

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