 Page 3 The limit of a fractional argument where top and bottom have the same degree: The limit is the fraction made from the coefficients of the highest degree terms: 
Once aain, be careful if the terms are not in order: 
This shortcut works even when the expressions aren't polynomials:  Notice some things: - The degree on top is actually 1, the same as the bottom, since it's under a square root - The limit is to negative infinity  [The negative sign in the denominator 'cancels' the negative sign on the infinity] |