Enrhifo
8000\sqrt{30}\approx 43817.804600413
Rhannu
Copïo i clipfwrdd
2\sqrt{4000000\times 120}
Lluosi 4000 a 1000 i gael 4000000.
2\sqrt{480000000}
Lluosi 4000000 a 120 i gael 480000000.
2\times 4000\sqrt{30}
Ffactora 480000000=4000^{2}\times 30. Ailysgrifennu ail isradd y lluoswm \sqrt{4000^{2}\times 30} fel lluoswm ail israddau \sqrt{4000^{2}}\sqrt{30}. Cymryd isradd 4000^{2}.
8000\sqrt{30}
Lluosi 2 a 4000 i gael 8000.
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