Whakaoti i te (7+3)^2=7^2+2*7*3+3^2

$$( 7 + 3 ) ^ { 2 } = 7 ^ { 2 } + 2 \times 7 \times 3 + 3 ^ { 2 }$$

Manatoko

Ngā Upane Otinga

Tāpirihia te 7 ki te 3, ka 10.

$$10^{2}=7^{2}+2\times 7\times 3+3^{2}$$

Tātaihia te 10 mā te pū o 2, kia riro ko 100.

$$100=7^{2}+2\times 7\times 3+3^{2}$$

Tātaihia te 7 mā te pū o 2, kia riro ko 49.

$$100=49+2\times 7\times 3+3^{2}$$

Whakareatia te 2 ki te 7, ka 14.

$$100=49+14\times 3+3^{2}$$

Whakareatia te 14 ki te 3, ka 42.

$$100=49+42+3^{2}$$

Tāpirihia te 49 ki te 42, ka 91.

$$100=91+3^{2}$$

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

$$100=91+9$$

Tāpirihia te 91 ki te 9, ka 100.

$$100=100$$

Whakatauritea te 100 me te 100.

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