Whakaoti mō k
k=5
Tohaina
Kua tāruatia ki te papatopenga
4\times 20=k\times 4\times 2^{2}
Me whakarea ngā taha e rua ki te 20.
20=k\times 2^{2}
Me whakakore te 4 ki ngā taha e rua.
20=k\times 4
Tātaihia te 2 mā te pū o 2, kia riro ko 4.
k\times 4=20
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
k=\frac{20}{4}
Whakawehea ngā taha e rua ki te 4.
k=5
Whakawehea te 20 ki te 4, kia riro ko 5.
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