Question

2x²+1=0 qual a solução

Answer 1

$2 x^{2} +1=0\\ \\ 2 x^{2} =-1\\ \\ x^{2} =-\frac{1}{2}\\ \\ x= \pm \sqrt{-\frac{1}{2}}\\ \\ \boxed{x= \pm \frac{1}{4}i}$