Whakaoti i te 31.8^2-2*31.8*21.8+21.8^2

$$31.8 ^ { 2 } - 2 \cdot 31.8 \cdot 21.8 + 21.8 ^ { 2 }$$

Aromātai

$$100$$

Ngā Upane Otinga

Tātaihia te 31.8 mā te pū o 2, kia riro ko 1011.24.

$$1011.24-2\times 31.8\times 21.8+21.8^{2}$$

Whakareatia te 2 ki te 31.8, ka 63.6.

$$1011.24-63.6\times 21.8+21.8^{2}$$

Whakareatia te 63.6 ki te 21.8, ka 1386.48.

$$1011.24-1386.48+21.8^{2}$$

Tangohia te 1386.48 i te 1011.24, ka -375.24.

$$-375.24+21.8^{2}$$

Tātaihia te 21.8 mā te pū o 2, kia riro ko 475.24.

$$-375.24+475.24$$

Tāpirihia te -375.24 ki te 475.24, ka 100.

$$100$$

Tauwehe

$$2^{2}\times 5^{2}$$