Whats the answer for this question i don't really understand it ? ?

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

What is the solution set of the quadratic inequality x^2-5< or equal to 0

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?