Whakaoti i te -2.5^2-4(-2.5)-8/2(-2.5)+4

$$\frac{ { -2.5 }^{ 2 } -4(-2.5)-8 }{ 2(-2.5)+4 }$$

Aromātai

$$-8.25$$

Ngā Upane Otinga

Tātaihia te -2.5 mā te pū o 2, kia riro ko 6.25.

$$\frac{6.25-4\left(-2.5\right)-8}{2\left(-2.5\right)+4}$$

Whakareatia te 4 ki te -2.5, ka -10.

$$\frac{6.25-\left(-10\right)-8}{2\left(-2.5\right)+4}$$

Ko te tauaro o -10 ko 10.

$$\frac{6.25+10-8}{2\left(-2.5\right)+4}$$

Tāpirihia te 6.25 ki te 10, ka 16.25.

$$\frac{16.25-8}{2\left(-2.5\right)+4}$$

Tangohia te 8 i te 16.25, ka 8.25.

$$\frac{8.25}{2\left(-2.5\right)+4}$$

Whakareatia te 2 ki te -2.5, ka -5.

$$\frac{8.25}{-5+4}$$

Tāpirihia te -5 ki te 4, ka -1.

$$\frac{8.25}{-1}$$

Whakarohaina te \frac{8.25}{-1} mā te whakarea i te taurunga me te tauraro ki te 100.

$$\frac{825}{-100}$$

Whakahekea te hautanga \frac{825}{-100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.

$$-\frac{33}{4}$$

Tauwehe

$$-8.25$$