Whakaoti i te 8.52div0.2-7(0.9)^2

$$8.52 \div 0.2 - 7 ( 0.9 ) ^ { 2 }$$

Aromātai

$$36.93$$

Ngā Upane Otinga

Whakarohaina te \frac{8.52}{0.2} mā te whakarea i te taurunga me te tauraro ki te 100.

$$\frac{852}{20}-7\times 0.9^{2}$$

Whakahekea te hautanga \frac{852}{20} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 4.

$$\frac{213}{5}-7\times 0.9^{2}$$

Tātaihia te 0.9 mā te pū o 2, kia riro ko 0.81.

$$\frac{213}{5}-7\times 0.81$$

Whakareatia te 7 ki te 0.81, ka 5.67.

$$\frac{213}{5}-5.67$$

Me tahuri ki tau ā-ira 5.67 ki te hautau \frac{567}{100}.

$$\frac{213}{5}-\frac{567}{100}$$

Ko te maha noa iti rawa atu o 5 me 100 ko 100. Me tahuri \frac{213}{5} me \frac{567}{100} ki te hautau me te tautūnga 100.

$$\frac{4260}{100}-\frac{567}{100}$$

Tā te mea he rite te tauraro o \frac{4260}{100} me \frac{567}{100}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{4260-567}{100}$$

Tangohia te 567 i te 4260, ka 3693.

$$\frac{3693}{100}$$

Tauwehe

$$\frac{3 \cdot 1231}{2 ^ {2} \cdot 5 ^ {2}} = 36\frac{93}{100} = 36.93$$