Question

20. (a) If a, b, Y are zeroes of the cubic polynomial 6x3 - 11 x2 - 3x + 2, then
find the values of:
(i) a + B + Y
(ii) aß + By + ya
(iii) ABY
​

Answer 1

Answer:

6x³-11x²-3x + 2

a = 6, b= -11 ,c = -3 , d = 2

1. alpa + beta + gama = -b/a = -(-11)/6 = 11/6

2. ab + by + ya = c/a = -3/6= -1/2

3. aby = -d/a = -2/6 = -1/3