Datrys 4sqrt{45}*sqrt{80}

$$4 \sqrt { 45 } \times \sqrt { 80 }$$

Enrhifo

$$240$$

Camau Ateb

Ffactora 45=3^{2}\times 5. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 5} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{5}. Cymryd isradd 3^{2}.

$$4\times 3\sqrt{5}\sqrt{80}$$

Lluosi 4 a 3 i gael 12.

$$12\sqrt{5}\sqrt{80}$$

Ffactora 80=4^{2}\times 5. Ailysgrifennu ail isradd y lluoswm \sqrt{4^{2}\times 5} fel lluoswm ail israddau \sqrt{4^{2}}\sqrt{5}. Cymryd isradd 4^{2}.

$$12\sqrt{5}\times 4\sqrt{5}$$

Lluosi 12 a 4 i gael 48.

$$48\sqrt{5}\sqrt{5}$$

Lluosi \sqrt{5} a \sqrt{5} i gael 5.

$$48\times 5$$

Lluosi 48 a 5 i gael 240.

$$240$$

Ffactor

$$2^{4}\times 3\times 5$$