If x>0x > 0x>0 and xx2=xx+6x^{x^2} = x^{x+6}xx2=xx+6, which of the following is a possible value for xxx?
x=3x = 3x=3
x=2x = 2x=2
x=1x = 1x=1
x=2x = \sqrt{2}x=2