Question 248471
There is no solution to your problem, unless you are working with imaginary numbers.


{{{x^2+8=3}}}
{{{x^2=3-8}}}
{{{x^2=-5}}}


No number multiplied by itself would equal to a negative number, thus there is no solution to this problem.  
But, as I said before, if you are working with imaginary numbers, then the answer would be:


{{{x=sqrt(-5)}}} ...which is the same as to say... {{{x=sqrt(5i)}}}