Question

Zeros of a quadratic polynomial are in the ratio 2 : 3 and their sum is 15. Find the difference of the digits in the product of zeros of this polynomial. (1) 1 (2) 2 (3) 3 (4) 4

Answer 1

Answer:

Step-by-step explanation:

let the two numbers be 2x and 3x

so,

2x +3x =15

5x=15

x=3

so the numbers are 2×3 =6 and

3×3 =9

and there difference = 9-6 =3

so, the correct option is c

Answer 2

Answer:

let the roots are a and b

now

• a/b=2/3
• a=2b/3
• now

a+b=15

2b/3 +b=15

5b=45

b=9

a=6

therefore the product is = 54

difference is =5-4=1