https://gongquiz.com/main/pages/search.php?q=%EA%B2%BD%EC%B0%B0%EA%B3%B5%EB%AC%B4%EC%9B%90%28%EC%88%9C%EA%B2%BD%29+%EC%88%98%ED%95%99
https://gongquiz.com/main/pages/%EB%8B%A4%ED%95%AD%EC%8B%9D+f%28x%29%EB%A5%BC+%28x-1%29%28x-2%29%28x-3%29%EC%9C%BC%EB%A1%9C+%EB%82%98%EB%88%84%EC%97%88%EC%9D%84+%EB%95%8C%EC%9D%98+%EB%82%98%EB%A8%B8%EC%A7%80%EB%8A%94+x2%2Bx%2B1+%EC%9D%B4%EB%8B%A4.quiz?mode=practice&quizNo=722217&historyNo=reset&p=2&q=%EA%B2%BD%EC%B0%B0%EA%B3%B5%EB%AC%B4%EC%9B%90%28%EC%88%9C%EA%B2%BD%29+%EC%88%98%ED%95%99
[]
[722217,722218,722219,722220,722221,722222,722223,722224,722225,722226]
{"722217":[1,2,3,4],"722218":[1,2,3,4],"722219":[1,2,3,4],"722220":[1,2,3,4],"722221":[1,2,3,4],"722222":[1,2,3,4],"722223":[1,2,3,4],"722224":[1,2,3,4],"722225":[1,2,3,4],"722226":[1,2,3,4]}
practice
159025319