Aromātai
10
Tauwehe
2\times 5
Tohaina
Kua tāruatia ki te papatopenga
\left(3\sqrt{10}-\sqrt{40}\right)\sqrt{10}
Tauwehea te 90=3^{2}\times 10. Tuhia anō te pūtake rua o te hua \sqrt{3^{2}\times 10} hei hua o ngā pūtake rua \sqrt{3^{2}}\sqrt{10}. Tuhia te pūtakerua o te 3^{2}.
\left(3\sqrt{10}-2\sqrt{10}\right)\sqrt{10}
Tauwehea te 40=2^{2}\times 10. Tuhia anō te pūtake rua o te hua \sqrt{2^{2}\times 10} hei hua o ngā pūtake rua \sqrt{2^{2}}\sqrt{10}. Tuhia te pūtakerua o te 2^{2}.
\sqrt{10}\sqrt{10}
Pahekotia te 3\sqrt{10} me -2\sqrt{10}, ka \sqrt{10}.
10
Whakareatia te \sqrt{10} ki te \sqrt{10}, ka 10.
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