Whakaoti i te eP(x)=2x^3+4x^4-ax+20

$$e P ( x ) = 2 x ^ { 3 } + 4 x ^ { 4 } - a x + 20$$

Whakaoti mō P

$$P=-\frac{-4x^{4}-2x^{3}+ax-20}{ex}$$

$$x\neq 0$$

Ngā Upane mō te Whakaoti Whārite Rārangi

He hanga arowhānui tō te whārite.

$$exP=4x^{4}+2x^{3}-ax+20$$

Whakawehea ngā taha e rua ki te ex.

$$\frac{exP}{ex}=\frac{4x^{4}+2x^{3}-ax+20}{ex}$$

Mā te whakawehe ki te ex ka wetekia te whakareanga ki te ex.

$$P=\frac{4x^{4}+2x^{3}-ax+20}{ex}$$

Whakaoti mō a

$$a=4x^{3}+2x^{2}-eP+\frac{20}{x}$$

$$x\neq 0$$

Ngā Upane mō te Whakaoti Whārite Rārangi

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

$$2x^{3}+4x^{4}-ax+20=ePx$$

Tangohia te 2x^{3} mai i ngā taha e rua.

$$4x^{4}-ax+20=ePx-2x^{3}$$

Tangohia te 4x^{4} mai i ngā taha e rua.

$$-ax+20=ePx-2x^{3}-4x^{4}$$

Tangohia te 20 mai i ngā taha e rua.

$$-ax=ePx-2x^{3}-4x^{4}-20$$

He hanga arowhānui tō te whārite.

$$\left(-x\right)a=-4x^{4}-2x^{3}+ePx-20$$

Whakawehea ngā taha e rua ki te -x.

$$\frac{\left(-x\right)a}{-x}=\frac{-4x^{4}-2x^{3}+ePx-20}{-x}$$

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

$$a=\frac{-4x^{4}-2x^{3}+ePx-20}{-x}$$

Whakawehe ePx-2x^{3}-4x^{4}-20 ki te -x.

$$a=4x^{3}+2x^{2}-eP+\frac{20}{x}$$