/ 2\ | x | lim |6 - 7*x - --| x->3/2+\ 2 /
Limit(6 - 7*x - x^2/2, x, 3/2)
-45/8
= -5.625
/ 2\ | x | lim |6 - 7*x - --| x->3/2-\ 2 /
-5.625