Datrys sqrt{12}left(sqrt{50}-sqrt{18}right)

$$\sqrt{ 12 } \left( \sqrt{ 50 } - \sqrt{ 18 } \right)$$

Enrhifo

$$4\sqrt{6}\approx 9.797958971$$

Camau Ateb

Ffactora 12=2^{2}\times 3. Ailysgrifennu ail isradd y lluoswm \sqrt{2^{2}\times 3} fel lluoswm ail israddau \sqrt{2^{2}}\sqrt{3}. Cymryd isradd 2^{2}.

$$2\sqrt{3}\left(\sqrt{50}-\sqrt{18}\right)$$

Ffactora 50=5^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{5^{2}\times 2} fel lluoswm ail israddau \sqrt{5^{2}}\sqrt{2}. Cymryd isradd 5^{2}.

$$2\sqrt{3}\left(5\sqrt{2}-\sqrt{18}\right)$$

Ffactora 18=3^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 2} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{2}. Cymryd isradd 3^{2}.

$$2\sqrt{3}\left(5\sqrt{2}-3\sqrt{2}\right)$$

Cyfuno 5\sqrt{2} a -3\sqrt{2} i gael 2\sqrt{2}.

$$2\sqrt{3}\times 2\sqrt{2}$$

Lluosi 2 a 2 i gael 4.

$$4\sqrt{3}\sqrt{2}$$

I luosi \sqrt{3} a \sqrt{2}, dylid lluosi'r rhifau dan yr ail isradd.

$$4\sqrt{6}$$