Im trying so hard to understand this but I dont get the rest of it from...
Now x cannot be a number within the interval: -1 \leq x \leq 5. So x must be outside this interval, to the right of 5 or to the left of -1. In fact we only need x to be greater than 0.5 (2 x 0.5 = 1 = 7 - 6)) to the...