Datrys 5sqrt{98}+sqrt{72}

$$5 \sqrt { 98 } + \sqrt { 72 }$$

Enrhifo

$$41\sqrt{2}\approx 57.982756057$$

Camau Ateb

Ffactora 98=7^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{7^{2}\times 2} fel lluoswm ail israddau \sqrt{7^{2}}\sqrt{2}. Cymryd isradd 7^{2}.

$$5\times 7\sqrt{2}+\sqrt{72}$$

Lluosi 5 a 7 i gael 35.

$$35\sqrt{2}+\sqrt{72}$$

Ffactora 72=6^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{6^{2}\times 2} fel lluoswm ail israddau \sqrt{6^{2}}\sqrt{2}. Cymryd isradd 6^{2}.

$$35\sqrt{2}+6\sqrt{2}$$

Cyfuno 35\sqrt{2} a 6\sqrt{2} i gael 41\sqrt{2}.

$$41\sqrt{2}$$