Question

Use the square root method to find the solutions to 3x^2+2=0

Answer 1

Can someone tell me where I'm going wrong:
\[3x^2+2=0\]
\[3x^2=-2\]
\[x^2=-2/3\]
\[\sqrt{x^2}=\sqrt{-2/3}\]
\[x=+-i \sqrt{2/3}\]

Answer 2

everything is correct but the last one is positive...

Answer 3

The answer in the book says it should be \[+-i \sqrt{6}/3\]

Answer 4

hmm...