Datrys 8sqrt{72}+2sqrt{98}

$$8 \sqrt { 72 } + 2 \sqrt { 98 }$$

Enrhifo

$$62\sqrt{2}\approx 87.681240867$$

Camau Ateb

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}.

$$8\times 6\sqrt{2}+2\sqrt{98}$$

Lluosi 8 a 6 i gael 48.

$$48\sqrt{2}+2\sqrt{98}$$

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}.

$$48\sqrt{2}+2\times 7\sqrt{2}$$

Lluosi 2 a 7 i gael 14.

$$48\sqrt{2}+14\sqrt{2}$$

Cyfuno 48\sqrt{2} a 14\sqrt{2} i gael 62\sqrt{2}.

$$62\sqrt{2}$$