Whakaoti i te (6*7)^2-(3*3)^2/6*7-3*3

$$\frac { ( 6 \cdot 7 ) ^ { 2 } - ( 3 \cdot 3 ) ^ { 2 } } { 6 \cdot 7 - 3 \cdot 3 }$$

Aromātai

$$51$$

Ngā Upane Otinga

Whakareatia te 6 ki te 7, ka 42.

$$\frac{42^{2}-\left(3\times 3\right)^{2}}{6\times 7-3\times 3}$$

Tātaihia te 42 mā te pū o 2, kia riro ko 1764.

$$\frac{1764-\left(3\times 3\right)^{2}}{6\times 7-3\times 3}$$

Whakareatia te 3 ki te 3, ka 9.

$$\frac{1764-9^{2}}{6\times 7-3\times 3}$$

Tātaihia te 9 mā te pū o 2, kia riro ko 81.

$$\frac{1764-81}{6\times 7-3\times 3}$$

Tangohia te 81 i te 1764, ka 1683.

$$\frac{1683}{6\times 7-3\times 3}$$

Whakareatia te 6 ki te 7, ka 42.

$$\frac{1683}{42-3\times 3}$$

Whakareatia te 3 ki te 3, ka 9.

$$\frac{1683}{42-9}$$

Tangohia te 9 i te 42, ka 33.

$$\frac{1683}{33}$$

Whakawehea te 1683 ki te 33, kia riro ko 51.

$$51$$

Tauwehe

$$3\times 17$$