Răspuns:
Explicație pas cu pas:
1) f(-1) =12
f(-1) = m-1 +3m+1+3 = 4m+3
4m+3 =12
4m = 9
m=9/4
2) f(5/3) = -3
f(5/3) = (m-1)*25/9 -(3m+1)*5/3 +3=
(25m-25 -9m-3 +27)/9= (16m -1)/9
(16m -1)/9 = -3
16m-1 =-27
16m = -26
m = -26/16 = -13/8
3) f(3/4) = 0,(3) = 1/3 faci singura
4) f(4) = -2m^2 -1 sngura
