Whakaoti i te {ccc}{2}&{6}&{10}{-2}&{0}&{2}{-2}&{4}&{2}*{ccc}{-4}&{0}&{12}{0}&{1}&{0}{5}&{0}&{10}

$$\left( \begin{array} { c c c } { 2 } & { 6 } & { 10 } \\ { - 2 } & { 0 } & { 2 } \\ { - 2 } & { 4 } & { 2 } \end{array} \right) \cdot \left( \begin{array} { c c c } { - 4 } & { 0 } & { 12 } \\ { 0 } & { 1 } & { 0 } \\ { 5 } & { 0 } & { 10 } \end{array} \right)$$

Aromātai

$$\left(\begin{matrix}42&6&124\\18&0&-4\\18&4&-4\end{matrix}\right)$$

Ngā Upane e Whakamahi ana i te Ture Whakarea Poukapa

Ka tautuhia te whakareanga poukapa mēnā he ōrite te tau o ngā tīwae o te poukapa tuatahi ki te tau o ngā rārangi o te poukapa tuarua.

$$\left(\begin{matrix}2&6&10\\-2&0&2\\-2&4&2\end{matrix}\right)\left(\begin{matrix}-4&0&12\\0&1&0\\5&0&10\end{matrix}\right)$$

Whakareatia ia huānga o te rārangi tuatahi o te poukapa tuatahi ki te huānga hāngai o te tīwae tuatahi o te poukapa tuarua kā tāpiri i ēnei hua kia kitea ai te huānga i te rārangi tuatahi, tīwae tuatahi o te poukapa hua.

$$\left(\begin{matrix}2\left(-4\right)+10\times 5&&\\&&\\&&\end{matrix}\right)$$

Ka kitea ngā toenga huānga o te poukapa hua mā taua tikanga anō.

$$\left(\begin{matrix}2\left(-4\right)+10\times 5&6&2\times 12+10\times 10\\-2\left(-4\right)+2\times 5&0&-2\times 12+2\times 10\\-2\left(-4\right)+2\times 5&4&-2\times 12+2\times 10\end{matrix}\right)$$

Whakarūnātia ia huānga mā te whakarea i ngā kīanga tau takitahi.

$$\left(\begin{matrix}-8+50&6&24+100\\8+10&0&-24+20\\8+10&4&-24+20\end{matrix}\right)$$

Tapekehia ia huānga o te poukapa.

$$\left(\begin{matrix}42&6&124\\18&0&-4\\18&4&-4\end{matrix}\right)$$

Tātai Tau Whakatau

$$9600$$