Datrys 2sqrt{12}-sqrt{27}=

$$2 \sqrt { 12 } - \sqrt { 27 } =$$

Enrhifo

$$\sqrt{3}\approx 1.732050808$$

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}.

$$2\times 2\sqrt{3}-\sqrt{27}$$

Lluosi 2 a 2 i gael 4.

$$4\sqrt{3}-\sqrt{27}$$

Ffactora 27=3^{2}\times 3. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 3} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{3}. Cymryd isradd 3^{2}.

$$4\sqrt{3}-3\sqrt{3}$$

Cyfuno 4\sqrt{3} a -3\sqrt{3} i gael \sqrt{3}.

$$\sqrt{3}$$