Datrys sqrt{75}*sqrt{147}

$$\sqrt{ 75 } \times \sqrt{ 147 }$$

Enrhifo

$$105$$

Camau Ateb

Ffactora 75=5^{2}\times 3. Ailysgrifennu ail isradd y lluoswm \sqrt{5^{2}\times 3} fel lluoswm ail israddau \sqrt{5^{2}}\sqrt{3}. Cymryd isradd 5^{2}.

$$5\sqrt{3}\sqrt{147}$$

Ffactora 147=7^{2}\times 3. Ailysgrifennu ail isradd y lluoswm \sqrt{7^{2}\times 3} fel lluoswm ail israddau \sqrt{7^{2}}\sqrt{3}. Cymryd isradd 7^{2}.

$$5\sqrt{3}\times 7\sqrt{3}$$

Lluosi 5 a 7 i gael 35.

$$35\sqrt{3}\sqrt{3}$$

Lluosi \sqrt{3} a \sqrt{3} i gael 3.

$$35\times 3$$

Lluosi 35 a 3 i gael 105.

$$105$$

Ffactor

$$3\times 5\times 7$$