{"id":"site-4427/zad/7685","paper_id":"site-4427","number":"7685","points":null,"ptype":"open","subject":"matematyka","category":"zbiory","year":2015,"month":null,"level":"rozszerzona","text":"Udowodnij, że dla każdej liczby rzeczywistej x prawdziwa jest nierówność x^4 - x^2 - 2x + 3 > 0","answer":null,"answer_text":null,"solution":null,"image":"img/site/4427/zad-7685.svg","solution_image":"img/site/4427/rozw-7685.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 · 2015 (rozszerzona)","subject_label":"Matematyka","category_label":"Zbiory zadań","text_html":"<p>Udowodnij, że dla każdej liczby rzeczywistej x prawdziwa jest nierówność x^4 - x^2 - 2x + 3 &gt; 0</p>","solutions":[{"source":"site","label":"matematykaszkolna.pl","kind":"image","image":"/img/site/4427/rozw-7685.svg"}]}