how do we calculate x^2=9
and x² = - 5
1) \(x^2=9\)
\(\sqrt{x^2}=\sqrt{9}\)
\(x=±3\) 2) \(x^2=-5\)
\(\sqrt{x^2}=\sqrt{-5}\)
\(x=±\sqrt{5}i\)
+934 
