Question

Determinati partea intreaga a numarului x= Radical din 8 + radical din 18-radical din 32

Answer 1

 

$\Big[\sqrt{8}+\sqrt{18}-\sqrt{32}\Big]=\\\\=\Big[\sqrt{4\times2}+\sqrt{9\times2}-\sqrt{16\times2}\Big]=\\\\=\Big[2\sqrt{2}+3\sqrt{2}-4\sqrt{2}\Big]=\\\\=\Big[5\sqrt{2}-4\sqrt{2}\Big]=\\\\=\Big[\sqrt{2}\Big]=\Big[1,\!41\Big]=\boxed{\bf1}$