Whakaoti i te 12-2(7-4)^2div4

$$12-2(7-4)^2 \div 4$$

Aromātai

$$\frac{15}{2}=7.5$$

Ngā Upane Otinga

Tangohia te 4 i te 7, ka 3.

$$12-\frac{2\times 3^{2}}{4}$$

Tātaihia te 3 mā te pū o 2, kia riro ko 9.

$$12-\frac{2\times 9}{4}$$

Whakareatia te 2 ki te 9, ka 18.

$$12-\frac{18}{4}$$

Whakahekea te hautanga \frac{18}{4} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 2.

$$12-\frac{9}{2}$$

Tangohia te \frac{9}{2} i te 12, ka \frac{15}{2}.

$$\frac{15}{2}$$

Tauwehe

$$\frac{3 \cdot 5}{2} = 7\frac{1}{2} = 7.5$$