Datrys sqrt{8}*sqrt{18}

$$\sqrt { 8 } \times \sqrt { 18 }$$

Enrhifo

$$12$$

Camau Ateb

Ffactora 8=2^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{2^{2}\times 2} fel lluoswm ail israddau \sqrt{2^{2}}\sqrt{2}. Cymryd isradd 2^{2}.

$$2\sqrt{2}\sqrt{18}$$

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}.

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

Lluosi 2 a 3 i gael 6.

$$6\sqrt{2}\sqrt{2}$$

Lluosi \sqrt{2} a \sqrt{2} i gael 2.

$$6\times 2$$

Lluosi 6 a 2 i gael 12.

$$12$$

Ffactor

$$2^{2}\times 3$$