Which equation is equivalent to the given equation?
$x^2+16 x=22$
A$(x+16)^2=278$
B$(x+8)^2=38$
C$(x+8)^2=86$
D$(x+4)^2=22$
$x^2+16 x=22$
A$(x+16)^2=278$
B$(x+8)^2=38$
C$(x+8)^2=86$
D$(x+4)^2=22$