4
x(x-6)(x-4)/(x-4)(x-5)*1/(x-5)≤0
x(x-6)/(x-5)²≤0,x≠4
x=0 x=6 x=5
+ _ _ +
-------------[0]-----------------(5)-------------[6]-----------------
x∈[0;4) U (4;5) U (5;6]
0+1+2+3+6=12
6
x(x-3)(x-5)/(x-3)(x-4)*1/(x-4)≤0
x(x-5)/(x-4)²≤0,x≠3
+ _ _ +
-------------[0]-----------------(4)-------------[5]-----------------
x∈[0;3) U (3;4) U (4;5]
0+1+2+5=8