Question

lim x->1 (x^2 + 3x + 2)/(x^2 -1)

Answer 1

what do you need to look for?

Answer 2

Hint: factor both the numerator and denominator. Then simplify as much as you can

Answer 3

actually there is no real need to factor. if you replace \(x\) by 1 you get \(\frac{6}{0}\) so there is no limit

Answer 4

if you get \(\frac{0}{0}\) then you need to factor and cancel to see if there is a limit. but in this case there is none