Whakaoti i te ABCD-ABC=DCDC

$$A B C D - A B C = D C D C$$

Whakaoti mō A

$$\left\{\begin{matrix}A=\frac{CD^{2}}{B\left(D-1\right)}\text{, }&D\neq 1\text{ and }B\neq 0\\A\in \mathrm{R}\text{, }&\left(B=0\text{ and }D=0\right)\text{ or }C=0\end{matrix}\right.$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakareatia te D ki te D, ka D^{2}.

$$ABCD-ABC=D^{2}CC$$

Whakareatia te C ki te C, ka C^{2}.

$$ABCD-ABC=D^{2}C^{2}$$

Whakaraupapatia anō ngā kīanga tau.

$$ABCD-ABC=C^{2}D^{2}$$

Pahekotia ngā kīanga tau katoa e whai ana i te A.

$$\left(BCD-BC\right)A=C^{2}D^{2}$$

Whakawehea ngā taha e rua ki te BCD-BC.

$$\frac{\left(BCD-BC\right)A}{BCD-BC}=\frac{C^{2}D^{2}}{BCD-BC}$$

Mā te whakawehe ki te BCD-BC ka wetekia te whakareanga ki te BCD-BC.

$$A=\frac{C^{2}D^{2}}{BCD-BC}$$

Whakawehe C^{2}D^{2} ki te BCD-BC.

$$A=\frac{CD^{2}}{B\left(D-1\right)}$$

Whakaoti mō B

$$\left\{\begin{matrix}B=\frac{CD^{2}}{A\left(D-1\right)}\text{, }&D\neq 1\text{ and }A\neq 0\\B\in \mathrm{R}\text{, }&\left(A=0\text{ and }D=0\right)\text{ or }C=0\end{matrix}\right.$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakareatia te D ki te D, ka D^{2}.

$$ABCD-ABC=D^{2}CC$$

Whakareatia te C ki te C, ka C^{2}.

$$ABCD-ABC=D^{2}C^{2}$$

Whakaraupapatia anō ngā kīanga tau.

$$ABCD-ABC=C^{2}D^{2}$$

Pahekotia ngā kīanga tau katoa e whai ana i te B.

$$\left(ACD-AC\right)B=C^{2}D^{2}$$

Whakawehea ngā taha e rua ki te ACD-AC.

$$\frac{\left(ACD-AC\right)B}{ACD-AC}=\frac{C^{2}D^{2}}{ACD-AC}$$

Mā te whakawehe ki te ACD-AC ka wetekia te whakareanga ki te ACD-AC.

$$B=\frac{C^{2}D^{2}}{ACD-AC}$$

Whakawehe C^{2}D^{2} ki te ACD-AC.

$$B=\frac{CD^{2}}{A\left(D-1\right)}$$