Question # 1

Factors of 3x²-x-2 are:

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(x+1),(3x-2)

(x+1),(3x+2)

(x-1),(3x-2)

(x-1),(3x+2)

Factorize x²-11x-42:

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(x+14)(x+3)

(x-14)(x-3)

(x+14)(x-3)

(x-14)(x+3)

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Factorize 5x2-17xy - 12y²are:

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(x+4y)(5x+13y)

(x-4y)(5x-3y)

(x-4y),(5x+3y)

(5x-4y)(x+3y)

What will be added in 9x²-12xy to complete the square:

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-16y²

16y²

-4y²

4y²

If (x-2) is a factor of polynomial expression x²+2kx+8 the value of k is:

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3

-3

2

-2

Factors of 3x-3a + xy - ay are:

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(y+3)(x-a)

(y+3)(x+a)

(3+y)(x-a)

(3-y)(a-x)

Factors of 25x²+16a²+40x

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5x+4

(5x+4)²

(5x+4)(5x-4)

(5x-4)²

If (x-1) is a factor of polynomial expression x³-kx²+11x-6 the value of k is:

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-6

6

-18

18

What will be added to complete the square of 9a²-12ab ?

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-16b²

16b²

4b²

-4b²

Find m so that 9a²-12ab + m is a complete square :

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-16b²

16b²

-4b²

4b²

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Mathematics 9th Class English Medium Unit 5 Online Test MCQs With Answers

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