Enrhifo
\sqrt{6}+3\approx 5.449489743
Cwis
Arithmetic
5 problemau tebyg i:
\frac { \sqrt { 18 } - \sqrt { 12 } } { \sqrt { 50 } - \sqrt { 48 } }
Rhannu
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\frac{3\sqrt{2}-\sqrt{12}}{\sqrt{50}-\sqrt{48}}
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}.
\frac{3\sqrt{2}-2\sqrt{3}}{\sqrt{50}-\sqrt{48}}
Ffactora 12=2^{2}\times 3. Ailysgrifennu ail isradd y lluoswm \sqrt{2^{2}\times 3} fel lluoswm ail israddau \sqrt{2^{2}}\sqrt{3}. Cymryd isradd 2^{2}.
\frac{3\sqrt{2}-2\sqrt{3}}{5\sqrt{2}-\sqrt{48}}
Ffactora 50=5^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{5^{2}\times 2} fel lluoswm ail israddau \sqrt{5^{2}}\sqrt{2}. Cymryd isradd 5^{2}.
\frac{3\sqrt{2}-2\sqrt{3}}{5\sqrt{2}-4\sqrt{3}}
Ffactora 48=4^{2}\times 3. Ailysgrifennu ail isradd y lluoswm \sqrt{4^{2}\times 3} fel lluoswm ail israddau \sqrt{4^{2}}\sqrt{3}. Cymryd isradd 4^{2}.
\frac{\left(3\sqrt{2}-2\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}{\left(5\sqrt{2}-4\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}
Mae'n rhesymoli enwadur \frac{3\sqrt{2}-2\sqrt{3}}{5\sqrt{2}-4\sqrt{3}} drwy luosi'r rhifiadur a'r enwadur â 5\sqrt{2}+4\sqrt{3}.
\frac{\left(3\sqrt{2}-2\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}{\left(5\sqrt{2}\right)^{2}-\left(-4\sqrt{3}\right)^{2}}
Ystyriwch \left(5\sqrt{2}-4\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right). Gellir trawsnewid lluosi yn wahaniaeth rhwng sgwariau drwy ddefnyddio’r rheol: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
\frac{\left(3\sqrt{2}-2\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}{5^{2}\left(\sqrt{2}\right)^{2}-\left(-4\sqrt{3}\right)^{2}}
Ehangu \left(5\sqrt{2}\right)^{2}.
\frac{\left(3\sqrt{2}-2\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}{25\left(\sqrt{2}\right)^{2}-\left(-4\sqrt{3}\right)^{2}}
Cyfrifo 5 i bŵer 2 a chael 25.
\frac{\left(3\sqrt{2}-2\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}{25\times 2-\left(-4\sqrt{3}\right)^{2}}
Sgwâr \sqrt{2} yw 2.
\frac{\left(3\sqrt{2}-2\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}{50-\left(-4\sqrt{3}\right)^{2}}
Lluosi 25 a 2 i gael 50.
\frac{\left(3\sqrt{2}-2\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}{50-\left(-4\right)^{2}\left(\sqrt{3}\right)^{2}}
Ehangu \left(-4\sqrt{3}\right)^{2}.
\frac{\left(3\sqrt{2}-2\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}{50-16\left(\sqrt{3}\right)^{2}}
Cyfrifo -4 i bŵer 2 a chael 16.
\frac{\left(3\sqrt{2}-2\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}{50-16\times 3}
Sgwâr \sqrt{3} yw 3.
\frac{\left(3\sqrt{2}-2\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}{50-48}
Lluosi 16 a 3 i gael 48.
\frac{\left(3\sqrt{2}-2\sqrt{3}\right)\left(5\sqrt{2}+4\sqrt{3}\right)}{2}
Tynnu 48 o 50 i gael 2.
\frac{15\left(\sqrt{2}\right)^{2}+12\sqrt{3}\sqrt{2}-10\sqrt{3}\sqrt{2}-8\left(\sqrt{3}\right)^{2}}{2}
Cyfrifwch y briodoledd ddosrannol drwy luosi pob 3\sqrt{2}-2\sqrt{3} gan bob 5\sqrt{2}+4\sqrt{3}.
\frac{15\times 2+12\sqrt{3}\sqrt{2}-10\sqrt{3}\sqrt{2}-8\left(\sqrt{3}\right)^{2}}{2}
Sgwâr \sqrt{2} yw 2.
\frac{30+12\sqrt{3}\sqrt{2}-10\sqrt{3}\sqrt{2}-8\left(\sqrt{3}\right)^{2}}{2}
Lluosi 15 a 2 i gael 30.
\frac{30+12\sqrt{6}-10\sqrt{3}\sqrt{2}-8\left(\sqrt{3}\right)^{2}}{2}
I luosi \sqrt{3} a \sqrt{2}, dylid lluosi'r rhifau dan yr ail isradd.
\frac{30+12\sqrt{6}-10\sqrt{6}-8\left(\sqrt{3}\right)^{2}}{2}
I luosi \sqrt{3} a \sqrt{2}, dylid lluosi'r rhifau dan yr ail isradd.
\frac{30+2\sqrt{6}-8\left(\sqrt{3}\right)^{2}}{2}
Cyfuno 12\sqrt{6} a -10\sqrt{6} i gael 2\sqrt{6}.
\frac{30+2\sqrt{6}-8\times 3}{2}
Sgwâr \sqrt{3} yw 3.
\frac{30+2\sqrt{6}-24}{2}
Lluosi -8 a 3 i gael -24.
\frac{6+2\sqrt{6}}{2}
Tynnu 24 o 30 i gael 6.
3+\sqrt{6}
Rhannu pob term 6+2\sqrt{6} â 2 i gael 3+\sqrt{6}.
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