## Algebra 2 (1st Edition)

$$x=2\sqrt{2}i$$
We know that: $$\sqrt{-1}=i$$ Thus, we simplify the expression, replacing the square root of -1 with i when possible: $$3x^2=-24 \\ x^2=-8 \\ x=\sqrt{-8} \\ x=2\sqrt{2}i$$