Question

Find the sum of the roots for the equation $\frac{2}{3}{x}^2-6=0$.

• A. $1$
• B. $2$
• C. $3$
• D. $0$

Answer 1

The correct option is D $0$

$\frac{2}{3}{x}^2-6=0$

$\frac{2}{3}{x}^2=6$
$x^2=6\times \frac{3}{2}$
$x^2=9$
Squaring on both the sides, we get
$x=\pm 3$
Sum of the roots $=3-3=0$