Whakaoti i te SA^2=144*2+81

$$S A ^ { 2 } = 144 \cdot 2 + 81$$

Whakaoti mō S

$$S=\frac{369}{A^{2}}$$

$$A\neq 0$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Whakareatia te 144 ki te 2, ka 288.

$$SA^{2}=288+81$$

Tāpirihia te 288 ki te 81, ka 369.

$$SA^{2}=369$$

He hanga arowhānui tō te whārite.

$$A^{2}S=369$$

Whakawehea ngā taha e rua ki te A^{2}.

$$\frac{A^{2}S}{A^{2}}=\frac{369}{A^{2}}$$

Mā te whakawehe ki te A^{2} ka wetekia te whakareanga ki te A^{2}.

$$S=\frac{369}{A^{2}}$$

Whakaoti mō A (complex solution)

$$A=-3\sqrt{41}S^{-\frac{1}{2}}$$

$$A=3\sqrt{41}S^{-\frac{1}{2}}\text{, }S\neq 0$$

Whakaoti mō A

$$A=3\sqrt{\frac{41}{S}}$$

$$A=-3\sqrt{\frac{41}{S}}\text{, }S>0$$