# Class 9 Maths Polynomials important questions

Class 9 – Maths

Polynomials

Test Paper – 1

Question 1. The expanded form of (x + y –z) is –

(a) x² + y² +z² + 2xy + 2yz + 2zx (b) x² + y² -z² +2xy – 2yz – 2xz (c) x² + y²+ z² + 2xy – 2yz – 2zx (d) x² + y² + z² + 2xy + 2yx + 2xz

Question 2. The value of (102)³ –

(a) 1061208 (b) 1001208 (c) 1820058 (d) None of these

Question 3. If x+y+z =0, then x³ + y³ + z³ –

(a) xyz (b) 2xyz (c) 3xyz (d) 0

Question 4. The degree of Constant function is –

(a) 1 (b) 2 (c) 3 (d) 0

Question 5. The factors of x² – y

Class 9 –

Maths Polynomials

Test Paper –

Question 1-The expanded form of (x + y –z) is –                                         (1)

(a)x² + y² +z² + 2xy + 2yz + 2zx                           (b)x² + y² -z² +2xy – 2yz – 2xz

1. x² + y²+ z² + 2xy – 2yz – 2zx
2. x² + y² + z² + 2xy + 2yx + 2xz
3. The value of (102)³ – (1)
4. 1061208
5. 1001208
6. 1820058
7. None of these
8. If x+y+z =0, then x³ + y³ + z³ is – (1)
9. xyz
10. 2xyz
11. 3xyz
12. 0
13. The degree of Constant function is – (1)
14. 1
15. 2
16. 3
17. 0
18. The factors of x² – (1)

(a) x

(b) ( ) ()

(c) ( (d) none of these

1. )
2. )
3. )
4. )

7. 97 x 107 = ? using Identity –

1. (b)
2. (d) None of these

8 . (-11) will be equal to –

1. 3 x 11 x 7 x 4
2. 3 x (-11) x 7 x 4
3. (-11 + 7 + 4)
4. 0

9. Factors of x³+y³+3x²y+3xy² are-

(a) (

10. Factors of are-

(a) (3x + y) (b) (3x – y)² (c) (3x+y)(3x-y) (d) None of these

8. Half of a herd of deer are grazing in the field and three fourth of the remaining are playing nearby. The rest 9 are drinking water from the pond.

Find the number of deer in the herd. (3)

9. Sum of the digits of a two digit number is 12. When we interchange the digits, it is found that the resulting new number is greater than the original number by 54. What is the two-digit number? (3)

10.Divide 4500 into two parts such that 5% of the first part is equal to 10% of the second part. (3)

11. Three numbers are in the ratio of 4:5:6.If the sum of the largest and smallest equals the sum of the third and 55. Find the numbers. (3) 