Whakaoti i te 2a-[4b-{4a-(3b-2a+2b)}-b]

$$2 a - [ 4 b - \{ 4 a - ( 3 b - 2 a + 2 b ) \} - b ]$$

Aromātai

$$8\left(a-b\right)$$

Ngā Upane Otinga

Pahekotia te 3b me 2b, ka 5b.

$$2a-\left(4b-\left(4a-\left(5b-2a\right)\right)-b\right)$$

Hei kimi i te tauaro o 5b-2a, kimihia te tauaro o ia taurangi.

$$2a-\left(4b-\left(4a-5b-\left(-2a\right)\right)-b\right)$$

Ko te tauaro o -2a ko 2a.

$$2a-\left(4b-\left(4a-5b+2a\right)-b\right)$$

Pahekotia te 4a me 2a, ka 6a.

$$2a-\left(4b-\left(6a-5b\right)-b\right)$$

Hei kimi i te tauaro o 6a-5b, kimihia te tauaro o ia taurangi.

$$2a-\left(4b-6a-\left(-5b\right)-b\right)$$

Ko te tauaro o -5b ko 5b.

$$2a-\left(4b-6a+5b-b\right)$$

Pahekotia te 4b me 5b, ka 9b.

$$2a-\left(9b-6a-b\right)$$

Pahekotia te 9b me -b, ka 8b.

$$2a-\left(8b-6a\right)$$

Hei kimi i te tauaro o 8b-6a, kimihia te tauaro o ia taurangi.

$$2a-8b-\left(-6a\right)$$

Ko te tauaro o -6a ko 6a.

$$2a-8b+6a$$

Pahekotia te 2a me 6a, ka 8a.

$$8a-8b$$

Whakaroha

$$8a-8b$$

Ngā Upane Otinga

Pahekotia te 3b me 2b, ka 5b.

$$2a-\left(4b-\left(4a-\left(5b-2a\right)\right)-b\right)$$

Hei kimi i te tauaro o 5b-2a, kimihia te tauaro o ia taurangi.

$$2a-\left(4b-\left(4a-5b-\left(-2a\right)\right)-b\right)$$

Ko te tauaro o -2a ko 2a.

$$2a-\left(4b-\left(4a-5b+2a\right)-b\right)$$

Pahekotia te 4a me 2a, ka 6a.

$$2a-\left(4b-\left(6a-5b\right)-b\right)$$

Hei kimi i te tauaro o 6a-5b, kimihia te tauaro o ia taurangi.

$$2a-\left(4b-6a-\left(-5b\right)-b\right)$$

Ko te tauaro o -5b ko 5b.

$$2a-\left(4b-6a+5b-b\right)$$

Pahekotia te 4b me 5b, ka 9b.

$$2a-\left(9b-6a-b\right)$$

Pahekotia te 9b me -b, ka 8b.

$$2a-\left(8b-6a\right)$$

Hei kimi i te tauaro o 8b-6a, kimihia te tauaro o ia taurangi.

$$2a-8b-\left(-6a\right)$$

Ko te tauaro o -6a ko 6a.

$$2a-8b+6a$$

Pahekotia te 2a me 6a, ka 8a.

$$8a-8b$$