MM
Mashaal Masha
Feb 21, 2024
The expression $\frac{1}{3}x^{2}-2$ can be rewritten as $\frac{1}{3}(x-k)(x+k)$, where $k$ is a positive constant. What is the value of $k$?
Difficulty: Hard
A:
$2$
B:
$6$
C:
$\sqrt{2}$
D:
$\sqrt{6}$
ID: 65d5b1e1dbc6daab1c0be5df