Whakaoti i te (sqrt{1-0,19}+0,3^2-6/25):(-3)=

$$( \sqrt { 1 - 0,19 } + 0,3 ^ { 2 } - \frac { 6 } { 25 } ) : ( - 3 ) =$$

Aromātai

$$-0.25$$

Ngā Upane Otinga

Tangohia te 0.19 i te 1, ka 0.81.

$$\frac{\sqrt{0.81}+0.3^{2}-\frac{6}{25}}{-3}$$

Tātaitia te pūtakerua o 0.81 kia tae ki 0.9.

$$\frac{0.9+0.3^{2}-\frac{6}{25}}{-3}$$

Tātaihia te 0.3 mā te pū o 2, kia riro ko 0.09.

$$\frac{0.9+0.09-\frac{6}{25}}{-3}$$

Tāpirihia te 0.9 ki te 0.09, ka 0.99.

$$\frac{0.99-\frac{6}{25}}{-3}$$

Me tahuri ki tau ā-ira 0.99 ki te hautau \frac{99}{100}.

$$\frac{\frac{99}{100}-\frac{6}{25}}{-3}$$

Ko te maha noa iti rawa atu o 100 me 25 ko 100. Me tahuri \frac{99}{100} me \frac{6}{25} ki te hautau me te tautūnga 100.

$$\frac{\frac{99}{100}-\frac{24}{100}}{-3}$$

Tā te mea he rite te tauraro o \frac{99}{100} me \frac{24}{100}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{\frac{99-24}{100}}{-3}$$

Tangohia te 24 i te 99, ka 75.

$$\frac{\frac{75}{100}}{-3}$$

Whakahekea te hautanga \frac{75}{100} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 25.

$$\frac{\frac{3}{4}}{-3}$$

Tuhia te \frac{\frac{3}{4}}{-3} hei hautanga kotahi.

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

Whakareatia te 4 ki te -3, ka -12.

$$\frac{3}{-12}$$

Whakahekea te hautanga \frac{3}{-12} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$-\frac{1}{4}$$

Tauwehe

$$-0.25$$