Simplify this equation .

Identity:



So we can rewrite the denominator to get



Multiply numerator and denominator by . Several terms will cancel since . Also, . We get



Factorize the numerator, and write in terms of in the denominator to factorize it further to get



The factors cancel, leaving you with



which you could simplify a bit further by writing

Well in order to lose a pound you would have to burn 1,500 calories. the more calories you burn the more weight you lose. in order to lose 2 pounds you would have to run 4 hours and 28 minutes.

The correct awnser is 29.76 pounds.