/ _______ 4 \ lim |\/ 1 + x - ------------| x->4+| 2| \ -20 + x + x /
Limit(sqrt(1 + x) - 4/(-20 + x + x^2), x, 4)
/ _______ 4 \ lim |\/ 1 + x - ------------| x->4+| 2| \ -20 + x + x /
-oo
= -64.8242163786822
/ _______ 4 \ lim |\/ 1 + x - ------------| x->4-| 2| \ -20 + x + x /
oo
= 69.3951168385683
= 69.3951168385683