二次不等式の応用問題 - 範囲に整数解がいくつ含まれるか

id	30380
user_id	1056
roll_id	1799
order	6
language	ja
description
image_id	0
tag	[quadratic_inequality:0.5][integer_solution:0.3][application:0.2]
created_time	1772793962
updated_time	1772793962