Question

3x в квадрате - 1 =1

Answer 1

3х²-1=1
3х²=1+1
3х²=2
х²=2/3
х1=√2/3
х2=-√2/3

Answer 2

$3 x^{2} -1=1$
$3 x^{2}=2$
$x^{2} = \frac{2}{3}$
$x=$ ± $\sqrt{ \frac{2}{3} }$