Whakaoti i te A^2*6=87

$$A ^ { 2 } \times 6 = 87$$

Whakaoti mō A

$$A = \frac{\sqrt{58}}{2} \approx 3.807886553$$

$$A = -\frac{\sqrt{58}}{2} \approx -3.807886553$$

Ngā Upane mā te Kimi Pūtakerua

Whakawehea ngā taha e rua ki te 6.

$$A^{2}=\frac{87}{6}$$

Whakahekea te hautanga \frac{87}{6} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$A^{2}=\frac{29}{2}$$

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

$$A=\frac{\sqrt{58}}{2} A=-\frac{\sqrt{58}}{2}$$

Ngā Upane e Whakamahi ana i te Tikanga Tātai Pūrua

Whakawehea ngā taha e rua ki te 6.

$$A^{2}=\frac{87}{6}$$

Whakahekea te hautanga \frac{87}{6} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$A^{2}=\frac{29}{2}$$

Tangohia te \frac{29}{2} mai i ngā taha e rua.

$$A^{2}-\frac{29}{2}=0$$

Kei te āhua arowhānui tēnei whārite: ax^{2}+bx+c=0. Me whakakapi 1 mō a, 0 mō b, me -\frac{29}{2} mō c i te tikanga tātai pūrua, \frac{-b±\sqrt{b^{2}-4ac}}{2a}.

$$A=\frac{0±\sqrt{0^{2}-4\left(-\frac{29}{2}\right)}}{2}$$

Pūrua 0.

$$A=\frac{0±\sqrt{-4\left(-\frac{29}{2}\right)}}{2}$$

Whakareatia -4 ki te -\frac{29}{2}.

$$A=\frac{0±\sqrt{58}}{2}$$

Nā, me whakaoti te whārite A=\frac{0±\sqrt{58}}{2} ina he tāpiri te ±.

$$A=\frac{\sqrt{58}}{2}$$

Nā, me whakaoti te whārite A=\frac{0±\sqrt{58}}{2} ina he tango te ±.

$$A=-\frac{\sqrt{58}}{2}$$

Kua oti te whārite te whakatau.

$$A=\frac{\sqrt{58}}{2} A=-\frac{\sqrt{58}}{2}$$