Enrhifo
\frac{2\sqrt{42}}{3}\approx 4.320493799
Rhannu
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\sqrt{3\left(-3\right)^{2}+\frac{7-4\times 2^{3}}{3}}
Tynnu 5 o 2 i gael -3.
\sqrt{3\times 9+\frac{7-4\times 2^{3}}{3}}
Cyfrifo -3 i bŵer 2 a chael 9.
\sqrt{27+\frac{7-4\times 2^{3}}{3}}
Lluosi 3 a 9 i gael 27.
\sqrt{27+\frac{7-4\times 8}{3}}
Cyfrifo 2 i bŵer 3 a chael 8.
\sqrt{27+\frac{7-32}{3}}
Lluosi 4 a 8 i gael 32.
\sqrt{27+\frac{-25}{3}}
Tynnu 32 o 7 i gael -25.
\sqrt{27-\frac{25}{3}}
Gellir ailysgrifennu \frac{-25}{3} fel -\frac{25}{3} drwy echdynnu’r arwydd negatif.
\sqrt{\frac{56}{3}}
Tynnu \frac{25}{3} o 27 i gael \frac{56}{3}.
\frac{\sqrt{56}}{\sqrt{3}}
Ailysgrifennu ail isradd y rhaniad \sqrt{\frac{56}{3}} fel rhaniad ail israddau \frac{\sqrt{56}}{\sqrt{3}}.
\frac{2\sqrt{14}}{\sqrt{3}}
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}.
\frac{2\sqrt{14}\sqrt{3}}{\left(\sqrt{3}\right)^{2}}
Mae'n rhesymoli enwadur \frac{2\sqrt{14}}{\sqrt{3}} drwy luosi'r rhifiadur a'r enwadur â \sqrt{3}.
\frac{2\sqrt{14}\sqrt{3}}{3}
Sgwâr \sqrt{3} yw 3.
\frac{2\sqrt{42}}{3}
I luosi \sqrt{14} a \sqrt{3}, dylid lluosi'r rhifau dan yr ail isradd.
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