is there a variable in the denominator for this problem k^2-k-20/18

Question

 

Is there a variable in the denominator for this problem k^2-k-20/18

 

If not is there any value that makes your denominator undefined? If not what will the domain of your first problem be?

Answer 1

PROPER parenthesization of the expression is recommended.  Since you have to write the whole expression in one typed line, care must be taken to make it crystal clear what the denominators and numerators are--thus you must group a multi-term expression entirely within parentheses, e.g. (x +y)/(z + w). 

 

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