{"id":"site-2668/zad/4307","paper_id":"site-2668","number":"4307","points":null,"ptype":"open","subject":"matematyka","category":"zbiory","year":0,"month":null,"level":"podstawowa","text":"Nierówność kwadratowa -x^2-4x+21 < 0. Zadanie z matury próbnej z matematyki - grudzień 2014.","answer":null,"answer_text":null,"solution":null,"image":"img/site/2668/zad-4307.svg","solution_image":"img/site/2668/rozw-4307.svg","topics":null,"page_from":null,"source":"site","answer_source":null,"answer_text_source":null,"solution_source":null,"text_source":"site","source_label":"Matematyka · Zbiory zadań (podstawowa)","subject_label":"Matematyka","category_label":"Zbiory zadań","text_html":"<p>Nierówność kwadratowa -x^2-4x+21 &lt; 0. Zadanie z matury próbnej z matematyki - grudzień 2014.</p>","solutions":[{"source":"site","label":"matematykaszkolna.pl","kind":"image","image":"/img/site/2668/rozw-4307.svg"}]}