Enrhifo
\sqrt{14}\approx 3.741657387
Rhannu
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3\sqrt{14}-\sqrt{56}
Ffactora 126=3^{2}\times 14. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 14} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{14}. Cymryd isradd 3^{2}.
3\sqrt{14}-2\sqrt{14}
Ffactora 56=2^{2}\times 14. Ailysgrifennu ail isradd y lluoswm \sqrt{2^{2}\times 14} fel lluoswm ail israddau \sqrt{2^{2}}\sqrt{14}. Cymryd isradd 2^{2}.
\sqrt{14}
Cyfuno 3\sqrt{14} a -2\sqrt{14} i gael \sqrt{14}.
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