Whakaoti i te 2^3x=855

$$2 ^ { 3 x } = 855$$

Whakaoti mō x

$$x = \frac{\log_{2} {(855)}}{3} \approx 3.246593537$$

Ngā Upane e Whakamahi ana i te Tautuhinga o te Taupū Kōaro

Whakamahia ngā ture taupū me ngā taupū kōaro hei whakaoti i te whārite.

$$2^{3x}=855$$

Tuhia te tau taupū kōaro o ngā taha e rua o te whārite.

$$\log(2^{3x})=\log(855)$$

Ko te taupū kōaro o tētahi tau ka hīkina ki tētahi pū ko te pū whakarea ki te taupū kōaro o taua tau.

$$3x\log(2)=\log(855)$$

Whakawehea ngā taha e rua ki te \log(2).

$$3x=\frac{\log(855)}{\log(2)}$$

Mā te tikanga tātai huri pūtake \frac{\log(a)}{\log(b)}=\log_{b}\left(a\right).

$$3x=\log_{2}\left(855\right)$$

Whakawehea ngā taha e rua ki te 3.

$$x=\frac{\log_{2}\left(855\right)}{3}$$

Whakaoti mō x (complex solution)

$$x=\frac{2\pi n_{1}i}{3\ln(2)}+\frac{\log_{2}\left(855\right)}{3}$$

$$n_{1}\in \mathrm{Z}$$