Whakaoti i te [5^2*3/15+2*(9-3)^2]-8

$$[ 5 ^ { 2 } \times 3 / 15 + 2 \times ( 9 - 3 ) ^ { 2 } ] - 8$$

Aromātai

$$69$$

Ngā Upane Otinga

Tātaihia te 5 mā te pū o 2, kia riro ko 25.

$$25\times \frac{3}{15}+2\left(9-3\right)^{2}-8$$

Whakahekea te hautanga \frac{3}{15} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 3.

$$25\times \frac{1}{5}+2\left(9-3\right)^{2}-8$$

Whakareatia te 25 ki te \frac{1}{5}, ka 5.

$$5+2\left(9-3\right)^{2}-8$$

Tangohia te 3 i te 9, ka 6.

$$5+2\times 6^{2}-8$$

Tātaihia te 6 mā te pū o 2, kia riro ko 36.

$$5+2\times 36-8$$

Whakareatia te 2 ki te 36, ka 72.

$$5+72-8$$

Tāpirihia te 5 ki te 72, ka 77.

$$77-8$$

Tangohia te 8 i te 77, ka 69.

$$69$$

Tauwehe

$$3\times 23$$