Math Speed Racing Exponents 2

Keep on racing by keeping your race car fueled up and avoiding other cars.  Fuel up by getting the fuel that has the answer to your car's exponent expression.  Game over if you run out of fuel or run into another racer.  This version is a little more advanced than the regular Math Speed Racing Exponents as the exponent base may be negative in this version.

Your race car will have an exponent expression beside it.  Run into the fuel tank that has the answer to that expression to get extra fuel.  Hit the wrong tank and you'll lose fuel.  See how far you can go before you run out of fuel or crash!  Collecting coins add to your score.