Whakaoti mō k
k=\frac{z^{2}+27}{10}
Whakaoti mō z
z=\sqrt{10k-27}
z=-\sqrt{10k-27}\text{, }k\geq \frac{27}{10}
Tohaina
Kua tāruatia ki te papatopenga
10k=z^{2}+27
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
\frac{10k}{10}=\frac{z^{2}+27}{10}
Whakawehea ngā taha e rua ki te 10.
k=\frac{z^{2}+27}{10}
Mā te whakawehe ki te 10 ka wetekia te whakareanga ki te 10.
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