Rounded to the nearest hundredth, what is the positive solution to the quadratic equation 0 = 2x2 + 3x – 8?

For this case we have the following quadratic function:
 
 Using the method of the resolver we have:
 
 Substituting values:
 
 Rewriting we have:
 
 
 Doing the calculations we have the results are:
 
 Rounding the positive solution to the hundredth hundredth:
 
 
 The positive solution to the quadratic equation is:
 

This does not make sense