Whakaoti i te frac{-145-sqrt{145^2-4-49*199}}{-98}

$$\frac{ -145- \sqrt{ { 145 }^{ 2 } -4-49 \cdot 199 } }{ -98 }$$

Aromātai

$$\frac{\sqrt{230}}{14}+\frac{145}{98}\approx 2.562859757$$

Ngā Upane Otinga

Tātaihia te 145 mā te pū o 2, kia riro ko 21025.

$$\frac{-145-\sqrt{21025-4-49\times 199}}{-98}$$

Tangohia te 4 i te 21025, ka 21021.

$$\frac{-145-\sqrt{21021-49\times 199}}{-98}$$

Whakareatia te 49 ki te 199, ka 9751.

$$\frac{-145-\sqrt{21021-9751}}{-98}$$

Tangohia te 9751 i te 21021, ka 11270.

$$\frac{-145-\sqrt{11270}}{-98}$$

Tauwehea te 11270=7^{2}\times 230. Tuhia anō te pūtake rua o te hua \sqrt{7^{2}\times 230} hei hua o ngā pūtake rua \sqrt{7^{2}}\sqrt{230}. Tuhia te pūtakerua o te 7^{2}.

$$\frac{-145-7\sqrt{230}}{-98}$$

Me whakarea tahi te taurunga me te tauraro ki te -1.

$$\frac{145+7\sqrt{230}}{98}$$