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Tohaina

37.5\sqrt{10}\sqrt{5}+37.5\sqrt{10}
Whakamahia te āhuatanga tohatoha hei whakarea te 12.5\sqrt{10} ki te 3\sqrt{5}+3.
37.5\sqrt{5}\sqrt{2}\sqrt{5}+37.5\sqrt{10}
Tauwehea te 10=5\times 2. Tuhia anō te pūtake rua o te hua \sqrt{5\times 2} hei hua o ngā pūtake rua \sqrt{5}\sqrt{2}.
37.5\times 5\sqrt{2}+37.5\sqrt{10}
Whakareatia te \sqrt{5} ki te \sqrt{5}, ka 5.
187.5\sqrt{2}+37.5\sqrt{10}
Whakareatia te 37.5 ki te 5, ka 187.5.