Whakaoti i te 4=k4(2)^2/20

$$4 = \frac { k 4 ( 2 ) ^ { 2 } } { 20 }$$

Whakaoti mō k_4

$$k_{4}=20$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Me whakarea ngā taha e rua ki te 20.

$$4\times 20=k_{4}\times 2^{2}$$

Whakareatia te 4 ki te 20, ka 80.

$$80=k_{4}\times 2^{2}$$

Tātaihia te 2 mā te pū o 2, kia riro ko 4.

$$80=k_{4}\times 4$$

Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.

$$k_{4}\times 4=80$$

Whakawehea ngā taha e rua ki te 4.

$$k_{4}=\frac{80}{4}$$

Whakawehea te 80 ki te 4, kia riro ko 20.

$$k_{4}=20$$