Hi I started limits today and I'm having trouble with two problems. Any help would be appreciated.
The first problem is
lim = -2x - 4 / x^3 + 2x^2
x->-2
The 2nd problem is
lim = x^4 - 1 / x^3 - 1
x->1
Thanks guys. These two problems have been killing me for the last two hours. =(
remember, your goal here is to simplify the function so that you can possibly plug in the number x is tending to. if this is not possible, then we have to deal with things differently. however, in both these cases, it is possiblehint: factorzie
note that
hint: the numerator is the difference of two squares and the denominator is the difference of two cubesThe 2nd problem is
lim = x^4 - 1 / x^3 - 1
x->1
Thanks guys. These two problems have been killing me for the last two hours. =(
so,
EDIT: argh! and i am late again