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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

5ab+b-2-ab-b-\left(-4\right)
Hei kimi i te tauaro o ab+b-4, kimihia te tauaro o ia taurangi.
5ab+b-2-ab-b+4
Ko te tauaro o -4 ko 4.
4ab+b-2-b+4
Pahekotia te 5ab me -ab, ka 4ab.
4ab-2+4
Pahekotia te b me -b, ka 0.
4ab+2
Tāpirihia te -2 ki te 4, ka 2.
5ab+b-2-ab-b-\left(-4\right)
Hei kimi i te tauaro o ab+b-4, kimihia te tauaro o ia taurangi.
5ab+b-2-ab-b+4
Ko te tauaro o -4 ko 4.
4ab+b-2-b+4
Pahekotia te 5ab me -ab, ka 4ab.
4ab-2+4
Pahekotia te b me -b, ka 0.
4ab+2
Tāpirihia te -2 ki te 4, ka 2.