1)write the expression as a square of a monomial. 2)write the expression as a square of a monomial.

To find the required monomial, take the square root of the given expression.

1)

2)

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.