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Whakaroha
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

8a^{3}-2a\left(a^{2}+2a+1\right)
Whakamahia te ture huarua \left(p+q\right)^{2}=p^{2}+2pq+q^{2} hei whakaroha \left(a+1\right)^{2}.
8a^{3}-2a^{3}-4a^{2}-2a
Whakamahia te āhuatanga tohatoha hei whakarea te -2a ki te a^{2}+2a+1.
6a^{3}-4a^{2}-2a
Pahekotia te 8a^{3} me -2a^{3}, ka 6a^{3}.
8a^{3}-2a\left(a^{2}+2a+1\right)
Whakamahia te ture huarua \left(p+q\right)^{2}=p^{2}+2pq+q^{2} hei whakaroha \left(a+1\right)^{2}.
8a^{3}-2a^{3}-4a^{2}-2a
Whakamahia te āhuatanga tohatoha hei whakarea te -2a ki te a^{2}+2a+1.
6a^{3}-4a^{2}-2a
Pahekotia te 8a^{3} me -2a^{3}, ka 6a^{3}.