Question

rezolvati inecuatia ( radical din 5 -2 ) x >radical din 20 -4 , x apartine lui R .........nu este totul sub radical decat 5 si 20

Answer 1

[tex](\sqrt5-2)x\ \textgreater \ \sqrt{20}-4\\ (\sqrt5-2)x\ \textgreater \ 2\sqrt5-4\\ (\sqrt5-2)x\ \textgreater \ 2(\sqrt5-2)\\ x\ \textgreater \ 2\\ Cum\ x\in R\Rightarrow x\in (2,\infty)[/tex]