Whakaoti i te f(-3)=(-3)^3-2(-3)/(-3)^2-4

$$f ( - 3 ) = \frac { ( - 3 ) ^ { 3 } - 2 ( - 3 ) } { ( - 3 ) ^ { 2 } - 4 }$$

Aromātai

$$-\frac{21}{5}=-4.2$$

Ngā Upane Otinga

Tātaihia te -3 mā te pū o 3, kia riro ko -27.

$$\frac{-27-2\left(-3\right)}{\left(-3\right)^{2}-4}$$

Whakareatia te 2 ki te -3, ka -6.

$$\frac{-27-\left(-6\right)}{\left(-3\right)^{2}-4}$$

Ko te tauaro o -6 ko 6.

$$\frac{-27+6}{\left(-3\right)^{2}-4}$$

Tāpirihia te -27 ki te 6, ka -21.

$$\frac{-21}{\left(-3\right)^{2}-4}$$

Tātaihia te -3 mā te pū o 2, kia riro ko 9.

$$\frac{-21}{9-4}$$

Tangohia te 4 i te 9, ka 5.

$$\frac{-21}{5}$$

Ka taea te hautanga \frac{-21}{5} te tuhi anō ko -\frac{21}{5} mā te tango i te tohu tōraro.

$$-\frac{21}{5}$$

Tauwehe

$$-\frac{21}{5} = -4\frac{1}{5} = -4.2$$