Question

find the limit of (x^2-1)/(x^2+3x-4)as x approaches 1

a. 2/5
b. 3/5
c. 1/5
d. 4/5

Answer 1

a

Answer 2

a

Answer 3

\[\frac{(x-1)(x+1)}{(x+4)(x-1)}\]
that should help

Answer 4

you got to factor