Tauwehe
\left(7m^{2}-4\right)\left(7m^{2}+4\right)
Aromātai
49m^{4}-16
Tohaina
Kua tāruatia ki te papatopenga
\left(7m^{2}-4\right)\left(7m^{2}+4\right)
Tuhia anō te 49m^{4}-16 hei \left(7m^{2}\right)^{2}-4^{2}. Ka taea te rerekētanga o ngā pūrua te whakatauwehe mā te ture: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right). Kāore i tauwehea ēnei pūrau i te mea kāhore ō rātou pūtake whakahau: 7m^{2}-4,7m^{2}+4.
Ngā Tauira
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