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A car company tested a sports car on a road with different inclines. The test driver tested the car by driving a distance of x miles on a flat road, (x2 + 3) miles downhill, and (x − 7) miles uphill. Which simplified expression is equivalent to the total distance, in miles, for which the car was tested?

Respuesta :

The answer is x= -4 if that's what they asking for
C. x²+ 2x - 4 Should be your answer to this question.

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