Whakaoti i te 9*10^9((-2*10^-3)(6*10^-3)/0.4^2)

$$9 \times { 10 }^{ 9 } ( \frac{ (-2 \times { 10 }^{ -3 } )(6 \times { 10 }^{ -3 } ) }{ { 0.4 }^{ 2 } } )$$

Aromātai

$$-675000$$

Ngā Upane Otinga

Hei whakarea i ngā pū o te pūtake kotahi, me tāpiri ō rātou taupū. Tāpiria te -3 me te -3 kia riro ai te -6.

$$9\times 10^{9}\times \frac{-2\times 10^{-6}\times 6}{0.4^{2}}$$

Tātaihia te 10 mā te pū o 9, kia riro ko 1000000000.

$$9\times 1000000000\times \frac{-2\times 10^{-6}\times 6}{0.4^{2}}$$

Whakareatia te 9 ki te 1000000000, ka 9000000000.

$$9000000000\times \frac{-2\times 10^{-6}\times 6}{0.4^{2}}$$

Tātaihia te 10 mā te pū o -6, kia riro ko \frac{1}{1000000}.

$$9000000000\times \frac{-2\times \frac{1}{1000000}\times 6}{0.4^{2}}$$

Whakareatia te -2 ki te \frac{1}{1000000}, ka -\frac{1}{500000}.

$$9000000000\times \frac{-\frac{1}{500000}\times 6}{0.4^{2}}$$

Whakareatia te -\frac{1}{500000} ki te 6, ka -\frac{3}{250000}.

$$9000000000\times \frac{-\frac{3}{250000}}{0.4^{2}}$$

Tātaihia te 0.4 mā te pū o 2, kia riro ko 0.16.

$$9000000000\times \frac{-\frac{3}{250000}}{0.16}$$

Tuhia te \frac{-\frac{3}{250000}}{0.16} hei hautanga kotahi.

$$9000000000\times \frac{-3}{250000\times 0.16}$$

Whakareatia te 250000 ki te 0.16, ka 40000.

$$9000000000\times \frac{-3}{40000}$$

Ka taea te hautanga \frac{-3}{40000} te tuhi anō ko -\frac{3}{40000} mā te tango i te tohu tōraro.

$$9000000000\left(-\frac{3}{40000}\right)$$

Whakareatia te 9000000000 ki te -\frac{3}{40000}, ka -675000.

$$-675000$$

Tauwehe

$$-675000$$