rad 18- rad 162 + rad 98=
= 3 rad 2 - 9rad 2 + rad 98=
= -6 rad 2 + rad 98=
=-6 rad 2 + 7 rad 2=
= rad 2
\sqrt{ 18 } - \sqrt{ 162 } + \sqrt{ 98 }
3\sqrt{2}-\sqrt{162}+\sqrt{98}
3\sqrt{2}-9\sqrt{2}+\sqrt{98}
-6\sqrt{2}+\sqrt{98}
-6\sqrt{2}+7\sqrt{2}
\sqrt{2}
SPER CA TE AM AJUTAT ♡♡♡
