A sports company conducted a road test of a new model of a geared bike. The test rider cycled (3x − 2) miles on a flat road, (x2
− 5) miles uphill, and (2x 7) miles downhill. Which simplified expression is equivalent to the total distance, in miles, for which the bike was tested? x2 − x x2 5x x2 − x 14 x2 5x 14.
