Question

if X = 2 and X= 1 are zeroes of polynomial ax²-3x+b , then find value of a - b ​

Answer 1

Answer:

On simplifying, we get a-b = -1

Step-by-step explanation:

given polynomial,

ax²-3x+b and we know X = 2 and X= 1 are zeroes of polynomial

*sum of the zeroes = 3/a = 2+1 = 3

3/a = 3

*a = 1*

*product of the zeroes = b/a = (2)(1) = 2

b/1 = 2

*b = 2

a-b = 1-2 = -1