Question

if one zeroes of a cubic polynomial ax³+bx²+cx+d is zero then then product of two other zero is=?


(a) -c/a
(b) c/a
(c) 0
(d) -d/a
​

Answer 1

0 into 0 is 0 the product 0 is the 0 only the ans:0

Answer 2

Answer:

b. c/a

Step-by-step explanation:

let 3 roots be alpha beta gamma

and alpha = 0 (let)

sum of 2 roots taken at once is

$\alpha \beta + \beta \gamma + \alpha \gamma = \frac{c}{a} \\ as \: \alpha = 0 \\ \beta \gamma = \frac{c}{a}$

thus sum of other roots is c/a