Odpowiedź:
Szczegółowe wyjaśnienie:
a) [tex]\sqrt{3} +\sqrt{12} =\sqrt{3}+\sqrt{4*3} =\sqrt{3} +2\sqrt{3} =3\sqrt{3}[/tex]
b) [tex]\sqrt{54} -\sqrt{6} =\sqrt{9*6} -\sqrt{6} =3\sqrt{6} -\sqrt{6} =2\sqrt{6}[/tex]
c) [tex]\sqrt{50} -\sqrt{2} =\sqrt{25*2} -\sqrt{2} =5\sqrt{2} -\sqrt{2} =4\sqrt{2}[/tex]
d) [tex]\sqrt{10} +\sqrt{90} =\sqrt{10} +\sqrt{9*10} =\sqrt{10} +3\sqrt{10} =4\sqrt{10}[/tex]
e) [tex]\sqrt{28} -\sqrt{7} =\sqrt{4*7} -\sqrt{7} =2\sqrt{7} -\sqrt{7} =\sqrt{7}[/tex]
f) [tex]\sqrt{45} +\sqrt{80} =\sqrt{9*5} +\sqrt{16*5} =3\sqrt{5} +4\sqrt{5} =7\sqrt{5}[/tex]
