Whakaoti mō x, y, z, a
a=3\sqrt{7}\approx 7.937253933
Tohaina
Kua tāruatia ki te papatopenga
y=\sqrt{9^{2}-2\times 9}
Whakaarohia te whārite tuarua. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
y=\sqrt{81-2\times 9}
Tātaihia te 9 mā te pū o 2, kia riro ko 81.
y=\sqrt{81-18}
Whakareatia te -2 ki te 9, ka -18.
y=\sqrt{63}
Tangohia te 18 i te 81, ka 63.
y=3\sqrt{7}
Tauwehea te 63=3^{2}\times 7. Tuhia anō te pūtake rua o te hua \sqrt{3^{2}\times 7} hei hua o ngā pūtake rua \sqrt{3^{2}}\sqrt{7}. Tuhia te pūtakerua o te 3^{2}.
z=3\sqrt{7}
Whakaarohia te whārite tuatoru. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
a=3\sqrt{7}
Whakaarohia te whārite tuawhā. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
x=9 y=3\sqrt{7} z=3\sqrt{7} a=3\sqrt{7}
Kua oti te pūnaha te whakatau.
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