Answer:
D
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
[6²-4(6)+1]-[3²-4(3)+1]/6-3 =5
3(x^2+10x+5)-5(x-k)=
3x^2+30x+15-5x+5k=
3x^2+25x+15+5k
for this to be divisible by x every term must include x or get eliminated
the problematic terms are 15 and 5k
to eliminate them they must equal 0 when added:
15+5k=0
5k=-15
k=-3
so A) -3 is the solution