Tīpoka ki ngā ihirangi matua
Aromātai
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Tauwehe
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

-9+4x+1
Tātaihia te 3 mā te pū o 2, kia riro ko 9.
-8+4x
Tāpirihia te -9 ki te 1, ka -8.
4x-8
Whakarea ka paheko i ngā kīanga tau ōrite.
4\left(x-2\right)
Tauwehea te 4.