Question

4. If the the zeroes of the polynomial f(x) = x? - ax + (b+1) are 4 and -5, then
(a) a = 1, b =-19
(b) a= -1, b = -19
(c) a -1, b = -21​

Answer 1

Answer:

hey mate here is ur ans

Step-by-step explanation:

given fx = x²-ax+(b+1)

let the zeroes be @ and & which is 4 and -5

@+& = -b/a =-(-a) /1

4+(-5) = a

a = -1

@.& = c/a = b+1/1

4.(-5) = b+1

b = -20-1 = -21

hope it help u