Whakaoti i te 4+x^2-2y=8

$$4 + x ^ { 2 } - 2 y = 8$$

Whakaoti mō y

$$y=\frac{x^{2}-4}{2}$$

Ngā Upane mō te Whakaoti Whārite Rārangi

Tangohia te 4 mai i ngā taha e rua.

$$x^{2}-2y=8-4$$

Tangohia te 4 i te 8, ka 4.

$$x^{2}-2y=4$$

Tangohia te x^{2} mai i ngā taha e rua.

$$-2y=4-x^{2}$$

Whakawehea ngā taha e rua ki te -2.

$$\frac{-2y}{-2}=\frac{4-x^{2}}{-2}$$

Mā te whakawehe ki te -2 ka wetekia te whakareanga ki te -2.

$$y=\frac{4-x^{2}}{-2}$$

Whakawehe -x^{2}+4 ki te -2.

$$y=\frac{x^{2}}{2}-2$$

Whakaoti mō x (complex solution)

$$x=-\sqrt{2\left(y+2\right)}$$

$$x=\sqrt{2\left(y+2\right)}$$

Whakaoti mō x

$$x=\sqrt{2\left(y+2\right)}$$

$$x=-\sqrt{2\left(y+2\right)}\text{, }y\geq -2$$