(-4,4)(4,-4)(-2 + 2倍根号5,2- 2倍根号5)(-2- 2倍根号5,2+ 2倍根号5)
满足题意的Q点的坐标有四个,分别是: (-4,4),(4,-4)(-2+2 ,2-2)(-2-2 ,2+2)