Whakaoti i te left(6x-5right)left(3x+8right)-(6x-7)(3x+6)

$$\left( 6x-5 \right) \left( 3x+8 \right) -(6x-7)(3x+6)$$

Aromātai

$$18x+2$$

Ngā Upane Otinga

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o 6x-5 ki ia tau o 3x+8.

$$18x^{2}+48x-15x-40-\left(6x-7\right)\left(3x+6\right)$$

Pahekotia te 48x me -15x, ka 33x.

$$18x^{2}+33x-40-\left(6x-7\right)\left(3x+6\right)$$

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o 6x-7 ki ia tau o 3x+6.

$$18x^{2}+33x-40-\left(18x^{2}+36x-21x-42\right)$$

Pahekotia te 36x me -21x, ka 15x.

$$18x^{2}+33x-40-\left(18x^{2}+15x-42\right)$$

Hei kimi i te tauaro o 18x^{2}+15x-42, kimihia te tauaro o ia taurangi.

$$18x^{2}+33x-40-18x^{2}-15x-\left(-42\right)$$

Ko te tauaro o -42 ko 42.

$$18x^{2}+33x-40-18x^{2}-15x+42$$

Pahekotia te 18x^{2} me -18x^{2}, ka 0.

$$33x-40-15x+42$$

Pahekotia te 33x me -15x, ka 18x.

$$18x-40+42$$

Tāpirihia te -40 ki te 42, ka 2.

$$18x+2$$

Whakaroha

$$18x+2$$

Ngā Upane Otinga

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o 6x-5 ki ia tau o 3x+8.

$$18x^{2}+48x-15x-40-\left(6x-7\right)\left(3x+6\right)$$

Pahekotia te 48x me -15x, ka 33x.

$$18x^{2}+33x-40-\left(6x-7\right)\left(3x+6\right)$$

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o 6x-7 ki ia tau o 3x+6.

$$18x^{2}+33x-40-\left(18x^{2}+36x-21x-42\right)$$

Pahekotia te 36x me -21x, ka 15x.

$$18x^{2}+33x-40-\left(18x^{2}+15x-42\right)$$

Hei kimi i te tauaro o 18x^{2}+15x-42, kimihia te tauaro o ia taurangi.

$$18x^{2}+33x-40-18x^{2}-15x-\left(-42\right)$$

Ko te tauaro o -42 ko 42.

$$18x^{2}+33x-40-18x^{2}-15x+42$$

Pahekotia te 18x^{2} me -18x^{2}, ka 0.

$$33x-40-15x+42$$

Pahekotia te 33x me -15x, ka 18x.

$$18x-40+42$$

Tāpirihia te -40 ki te 42, ka 2.

$$18x+2$$