Question

9. A quadratic polynomial, whose zeroes are –3 and 4, is

(A)

2

x x  12

(B)

2

x x  12

(C)

2

6

2 2

x x

 

(D)

2

6

2 2

x x

 

Answer: (C)

Explanation: The polynomial is:

 

   

2

2

2

3 4 3 4

12

x x

x x

x x

     

     

  

Dividing the whole polynomial with 2 as

2

2

12

6

2 2

x x

x x

 

  

10. The value of p for which the polynomial x

3

+ 4x2

– px + 8 is exactly divisible by (x – 2)

is:

(A) 0

(B) 3

(C) 5

(D) 16

Answer: (D)

Explanation: Since (x – 2) is one of the factor, so f (2) = 0

 

       

3 2

3 2

f x x 4x px 8

f 2 2 4 2 p 2 8

0 8 16 2p 8

2p 32

p 16

   

    

    

 

 

11. If sum of the squares of zeroes of the quadratic polynomial 6x2

+ x + k is 25/36, the value

of k is:

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Answer 1

Answer:

Your answers are correct ... All the best for your exams !!!! ✌️✌️✌️

Answer 2

Answer:

answer is (D) is true this question and answer given in detail in online