Explicație pas cu pas
[tex]\sqrt{16} +\sqrt{25} = 4 + 6 = 9[/tex]
[tex]\sqrt{12} +3\sqrt{3} = 2\sqrt{3} + 3\sqrt{3} = 5\sqrt{3}[/tex]
[tex]4\sqrt{5}+\sqrt{20}-3\sqrt{45} = 4\sqrt{5}+2\sqrt{5}-3*3\sqrt{5}= 4\sqrt{5}+\sqrt{20}-9\sqrt{5} = 6\sqrt{5} - 9\sqrt{5} = -3\sqrt{5}[/tex]
[tex]\sqrt{100} -\sqrt{64} = 10 - 8= 2[/tex]
[tex]5\sqrt{2} +\sqrt{18} -2\sqrt{32} = 5\sqrt{2} +3\sqrt{2} -2*4\sqrt{2} = 5\sqrt{2} +3\sqrt{2} -8\sqrt{2} = 8\sqrt{2}-8\sqrt{2}=0[/tex]
