/ 2 \ |x - 4*x| lim |--------| x->4+| 2 | \ 2 + x /
Limit((x^2 - 4*x)/(2 + x^2), x, 4)
= 0
/ 2 \ |x - 4*x| lim |--------| x->4+| 2 | \ 2 + x /
0
= 9.31847105953707e-33
/ 2 \ |x - 4*x| lim |--------| x->4-| 2 | \ 2 + x /
0
= -1.11901365590563e-34
= -1.11901365590563e-34