Question

Find the sum of the roots of the equation $-3x^2+9x-3=0$.

• A. 6
• B. 3
• C. 7
• D. 1

Answer 1

The correct option is B

3

Given that, $-3x^2+9x-3=0$
On comparing with $a{x}^2+bx+c=0$, we get
a = -3, b = 9 and c = - 3
$\therefore$ Sum of the roots $=\frac{-b}{a}=\frac{-\left(9\right)}{-3}=3$
So, sum of the roots of the quadratic equation $-3x^2+9x-3=0$ is 3.