Whakaoti i te x:2x=400000

$$x : 2 x = 400000$$

Whakaoti mō x

$$x=400\sqrt{5}\approx 894.427191$$

$$x=-400\sqrt{5}\approx -894.427191$$

Ngā Upane mā te Kimi Pūtakerua

Whakareatia ngā taha e rua o te whārite ki te 2.

$$xx=800000$$

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

$$x^{2}=800000$$

Tuhia te pūtakerua o ngā taha e rua o te whārite.

$$x=400\sqrt{5} x=-400\sqrt{5}$$

Ngā Upane e Whakamahi ana i te Tikanga Tātai Pūrua

Whakareatia ngā taha e rua o te whārite ki te 2.

$$xx=800000$$

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

$$x^{2}=800000$$

Tangohia te 800000 mai i ngā taha e rua.

$$x^{2}-800000=0$$

Kei te āhua arowhānui tēnei whārite: ax^{2}+bx+c=0. Me whakakapi 1 mō a, 0 mō b, me -800000 mō c i te tikanga tātai pūrua, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.

$$x=\frac{0±\sqrt{0^{2}-4\left(-800000\right)}}{2}$$

Pūrua 0.

$$x=\frac{0±\sqrt{-4\left(-800000\right)}}{2}$$

Whakareatia -4 ki te -800000.

$$x=\frac{0±\sqrt{3200000}}{2}$$

Tuhia te pūtakerua o te 3200000.

$$x=\frac{0±800\sqrt{5}}{2}$$

Nā, me whakaoti te whārite x=\frac{0±800\sqrt{5}}{2} ina he tāpiri te ±.

$$x=400\sqrt{5}$$

Nā, me whakaoti te whārite x=\frac{0±800\sqrt{5}}{2} ina he tango te ±.

$$x=-400\sqrt{5}$$

Kua oti te whārite te whakatau.

$$x=400\sqrt{5} x=-400\sqrt{5}$$