A(0,-3),(x+2y)0 ,x+2y=8 ,[log2(x+2y)-3]=0 ,(3x-4Y-12)=-8
C(4,0),x+2y>0 ,x+2y=4,[log2(x+2y)-3]=-1,(3x-4Y-12)=0
D(5/3,-7/4),x+2y
A(0,-3),(x+2y)0 ,x+2y=8 ,[log2(x+2y)-3]=0 ,(3x-4Y-12)=-8
C(4,0),x+2y>0 ,x+2y=4,[log2(x+2y)-3]=-1,(3x-4Y-12)=0
D(5/3,-7/4),x+2y