lets say that x=2(doesn't actually equal 2 is just plugging in a random number to make it easier)
4x+8=4*2+8=16
A is incorrect 4(x+8)=4(2+8)=40
B is correct 4(x+2)=4(2+2)=16
C is correct (8x+16)/2=(8*2+16)/2=16
D is correct 8+4x=8+4*2=16
E is incorrect (8x+8)/2=(8*2+8)/2=12
So the correct answers are: B C D