Question

The product of zeros of cubic polynomial $x^3-3x^2-x+3$ is

• A. -3
• B. -1
• C. 3
• D. 1

Answer 1

The correct option is A -3

For a cubic polynomial $a{x}^3+b{x}^2+cx+d$
Sum of zeros = $\frac{-b}{a}$
Product of zeros = $\frac{-d}{a}$
$\therefore$ Product of zeros is $\frac{-3}{1}$ = -3