Whakaoti i te (-5x-4)(-3x+6)-(-5x-4)(-2x+3)

$$( - 5 x - 4 ) ( - 3 x + 6 ) - ( - 5 x - 4 ) ( - 2 x + 3 )$$

Aromātai

$$5x^{2}-11x-12$$

Ngā Upane Otinga

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o -5x-4 ki ia tau o -3x+6.

$$15x^{2}-30x+12x-24-\left(-5x-4\right)\left(-2x+3\right)$$

Pahekotia te -30x me 12x, ka -18x.

$$15x^{2}-18x-24-\left(-5x-4\right)\left(-2x+3\right)$$

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o -5x-4 ki ia tau o -2x+3.

$$15x^{2}-18x-24-\left(10x^{2}-15x+8x-12\right)$$

Pahekotia te -15x me 8x, ka -7x.

$$15x^{2}-18x-24-\left(10x^{2}-7x-12\right)$$

Hei kimi i te tauaro o 10x^{2}-7x-12, kimihia te tauaro o ia taurangi.

$$15x^{2}-18x-24-10x^{2}-\left(-7x\right)-\left(-12\right)$$

Ko te tauaro o -7x ko 7x.

$$15x^{2}-18x-24-10x^{2}+7x-\left(-12\right)$$

Ko te tauaro o -12 ko 12.

$$15x^{2}-18x-24-10x^{2}+7x+12$$

Pahekotia te 15x^{2} me -10x^{2}, ka 5x^{2}.

$$5x^{2}-18x-24+7x+12$$

Pahekotia te -18x me 7x, ka -11x.

$$5x^{2}-11x-24+12$$

Tāpirihia te -24 ki te 12, ka -12.

$$5x^{2}-11x-12$$

Whakaroha

$$5x^{2}-11x-12$$

Ngā Upane Otinga

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o -5x-4 ki ia tau o -3x+6.

$$15x^{2}-30x+12x-24-\left(-5x-4\right)\left(-2x+3\right)$$

Pahekotia te -30x me 12x, ka -18x.

$$15x^{2}-18x-24-\left(-5x-4\right)\left(-2x+3\right)$$

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o -5x-4 ki ia tau o -2x+3.

$$15x^{2}-18x-24-\left(10x^{2}-15x+8x-12\right)$$

Pahekotia te -15x me 8x, ka -7x.

$$15x^{2}-18x-24-\left(10x^{2}-7x-12\right)$$

Hei kimi i te tauaro o 10x^{2}-7x-12, kimihia te tauaro o ia taurangi.

$$15x^{2}-18x-24-10x^{2}-\left(-7x\right)-\left(-12\right)$$

Ko te tauaro o -7x ko 7x.

$$15x^{2}-18x-24-10x^{2}+7x-\left(-12\right)$$

Ko te tauaro o -12 ko 12.

$$15x^{2}-18x-24-10x^{2}+7x+12$$

Pahekotia te 15x^{2} me -10x^{2}, ka 5x^{2}.

$$5x^{2}-18x-24+7x+12$$

Pahekotia te -18x me 7x, ka -11x.

$$5x^{2}-11x-24+12$$

Tāpirihia te -24 ki te 12, ka -12.

$$5x^{2}-11x-12$$