Enrhifo
13\sqrt{2}\approx 18.384776311
Rhannu
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7\sqrt{2}-3\times 2\sqrt{2}+4\sqrt{18}
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}.
7\sqrt{2}-6\sqrt{2}+4\sqrt{18}
Lluosi -3 a 2 i gael -6.
\sqrt{2}+4\sqrt{18}
Cyfuno 7\sqrt{2} a -6\sqrt{2} i gael \sqrt{2}.
\sqrt{2}+4\times 3\sqrt{2}
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}.
\sqrt{2}+12\sqrt{2}
Lluosi 4 a 3 i gael 12.
13\sqrt{2}
Cyfuno \sqrt{2} a 12\sqrt{2} i gael 13\sqrt{2}.
Enghreifftiau
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