Aromātai
\frac{2\sqrt{15}}{3}\approx 2.581988897
Tohaina
Kua tāruatia ki te papatopenga
4\times \frac{\sqrt{5}}{2\sqrt{3}}
Whakareatia te 2 ki te 2, ka 4.
4\times \frac{\sqrt{5}\sqrt{3}}{2\left(\sqrt{3}\right)^{2}}
Whakangāwaritia te tauraro o \frac{\sqrt{5}}{2\sqrt{3}} mā te whakarea i te taurunga me te tauraro ki te \sqrt{3}.
4\times \frac{\sqrt{5}\sqrt{3}}{2\times 3}
Ko te pūrua o \sqrt{3} ko 3.
4\times \frac{\sqrt{15}}{2\times 3}
Hei whakarea \sqrt{5} me \sqrt{3}, whakareatia ngā tau i raro i te pūtake rua.
4\times \frac{\sqrt{15}}{6}
Whakareatia te 2 ki te 3, ka 6.
\frac{4\sqrt{15}}{6}
Tuhia te 4\times \frac{\sqrt{15}}{6} hei hautanga kotahi.
\frac{2}{3}\sqrt{15}
Whakawehea te 4\sqrt{15} ki te 6, kia riro ko \frac{2}{3}\sqrt{15}.
Ngā Tauira
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{ x } ^ { 2 } - 4 x - 5 = 0
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