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?

Question

anonymous · Answer

so (3x - 2) + (x^2 - 5) + (2x + 7)
Lets hope im right:
x^2 + 5x + 0

anonymous · Answer

I combined the like terms:
3x and 2x = 5x
x^2 stays as it is
and -2 + -7 + 7 = 0

anonymous · Answer

yeah i see. thank you