Positive one would be a solution, so when you factor it it would be (x-1)(x-1)
—> both solutions being 1, and this works because on a graph it can hit the same spot twice
Or negative three, and when you factor it would be (x-3)(x+1)
—> one solution being 3, and another being -1
So m could be -3 or 1
That’s all I can think of hope that helped!