What are the solutions of the quadratic equation? x2=-5x-3

the correct answer is  x^2+5x+3=0

That is the answer to your question

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.