Distance between Bangalore and Chennai is (4x2+x+3). There are two routes to travel from Bangalore to Chennai as shown in the figure.
What is the difference between the distances of the two routes?
66
(4x2+x+3) whenx=3 gives 4×9+3+3=42
(4x2+x+3) when x=5 gives 4×25+5+3=108
The difference between the routes = 108 - 42 = 66