Whakaoti i te frac{8-sqrt{18}}{sqrt{2}}

$$\frac { 8 - \sqrt { 18 } } { \sqrt { 2 } }$$

Aromātai

$$4\sqrt{2}-3\approx 2.656854249$$

Ngā Upane Otinga

Tauwehea te 18=3^{2}\times 2. Tuhia anō te pūtake rua o te hua \sqrt{3^{2}\times 2} hei hua o ngā pūtake rua \sqrt{3^{2}}\sqrt{2}. Tuhia te pūtakerua o te 3^{2}.

$$\frac{8-3\sqrt{2}}{\sqrt{2}}$$

Whakangāwaritia te tauraro o \frac{8-3\sqrt{2}}{\sqrt{2}} mā te whakarea i te taurunga me te tauraro ki te \sqrt{2}.

$$\frac{\left(8-3\sqrt{2}\right)\sqrt{2}}{\left(\sqrt{2}\right)^{2}}$$

Ko te pūrua o \sqrt{2} ko 2.

$$\frac{\left(8-3\sqrt{2}\right)\sqrt{2}}{2}$$

Whakamahia te āhuatanga tohatoha hei whakarea te 8-3\sqrt{2} ki te \sqrt{2}.

$$\frac{8\sqrt{2}-3\left(\sqrt{2}\right)^{2}}{2}$$

Ko te pūrua o \sqrt{2} ko 2.

$$\frac{8\sqrt{2}-3\times 2}{2}$$

Whakareatia te -3 ki te 2, ka -6.

$$\frac{8\sqrt{2}-6}{2}$$

Whakawehea ia wā o 8\sqrt{2}-6 ki te 2, kia riro ko 4\sqrt{2}-3.

$$4\sqrt{2}-3$$