MCQ of Maths Class 9 Chapter 3

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MCQ of Maths Class 9


The factors of x2-5x+6 are…………
x + 1, x – 6
x – 2, x – 3
x + 6, x – 1
x + 2, x + 3

Factors of x4 – 4y4 are:
( x – y ) ,( x + y )( x2 + 4y2)
( x2 – y2 ) ,( x2 + 2y2 )
( x – y ) ,( x + y )( x2 – 4y2)
( x – 2y ) ,( x2 + 2y2 )

6×4-96 is equal to:
7(x2-22)(x2+4)
6(x2-22)(x2+4)
5(x2-22)(x2+4)
4(x2-22)(x2+4)

The value of k if the expression (x3+kx2+3x-4) leaves a remainder of -2 when divided by x+2 is
4
5
6
7

Factor of 1 – 125×3 are:
(1 – 5x)(1 + 5x + 25×2)
(1 + 5x)(1 + 5x + 25×2)
(1 + 5x)(1 – 5x + 25×2)
(1 + 5x)(1 – 5x – 25×2)

Factors of k(a + bk + ck) are:
(x xa0- 3 ) ( x – 4 )
(x xa0- 3 ) ( x + 4 )
(x xa0+ 3 ) ( x + 4 )
(x xa0+ 3 ) ( x – 4 )


An expression consisting of ………………. terms in which one of them is surd is called binomial surd.
2
3
4
None of these

Factors of 1+2ab-a2-b2 are:
(1 – a – b) (1 – a – b)
(1 – a + b) (1 – a – b)
(1 – a – b) (1 – a – b)
(1 – a + b) (1 + a – b)

What should be added in 4a2 – 12ab to make it a complete square?
9b2
-9b2
-3b2
3b2

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