/ 4*x \ lim |-3 + ---------| x->0+| _______| \ \/ 9 + x /
Limit(-3 + (4*x)/sqrt(9 + x), x, 0)
-3
= -3
/ 4*x \ lim |-3 + ---------| x->0-| _______| \ \/ 9 + x /
-3.0