{Calculus Limits} Find the limit as x approaches 5 of x^2-6x+5/x-5. (I'm confused on which terms to factor)

Question

campbell_st · Answer

factorise the numerator

$$\lim_{x \rightarrow 5}\frac{(x -5)(x -1)}{x -5} $$

cancel the common factor 

then it should be easy to find the limit

anonymous · Answer

i totally forget the method used to get x-1 (Digits that sum = the middle digit of the polynomial?)

anonymous · Answer

yeah.  digits that multiply to be the constant term, and sum to the the middle term coefficient

anonymous · Answer

Alright, man thanks. I'm about to work it out. I haven't had to remember this crap since Algebra in High School

campbell_st · Answer

in calculus you will need to know how to factorise...

anonymous · Answer

Yeah most def. 2nd day in the class. Have to refresh on a lot of things.