Whakaoti i te (-x-1)^2-(x+1)(x-1)

$$( - x - 1 ) ^ { 2 } - ( x + 1 ) ( x - 1 )$$

Aromātai

$$2\left(x+1\right)$$

Ngā Upane Otinga

Whakamahia te ture huarua \left(a-b\right)^{2}=a^{2}-2ab+b^{2} hei whakaroha \left(-x-1\right)^{2}.

$$\left(-x\right)^{2}-2\left(-x\right)+1-\left(x+1\right)\left(x-1\right)$$

Tātaihia te -x mā te pū o 2, kia riro ko x^{2}.

$$x^{2}-2\left(-x\right)+1-\left(x+1\right)\left(x-1\right)$$

Whakareatia te -2 ki te -1, ka 2.

$$x^{2}+2x+1-\left(x+1\right)\left(x-1\right)$$

Whakaarohia te \left(x+1\right)\left(x-1\right). Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}. Pūrua 1.

$$x^{2}+2x+1-\left(x^{2}-1\right)$$

Hei kimi i te tauaro o x^{2}-1, kimihia te tauaro o ia taurangi.

$$x^{2}+2x+1-x^{2}+1$$

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

$$2x+1+1$$

Tāpirihia te 1 ki te 1, ka 2.

$$2x+2$$

Whakaroha

$$2x+2$$

Ngā Upane Otinga

Whakamahia te ture huarua \left(a-b\right)^{2}=a^{2}-2ab+b^{2} hei whakaroha \left(-x-1\right)^{2}.

$$\left(-x\right)^{2}-2\left(-x\right)+1-\left(x+1\right)\left(x-1\right)$$

Tātaihia te -x mā te pū o 2, kia riro ko x^{2}.

$$x^{2}-2\left(-x\right)+1-\left(x+1\right)\left(x-1\right)$$

Whakareatia te -2 ki te -1, ka 2.

$$x^{2}+2x+1-\left(x+1\right)\left(x-1\right)$$

Whakaarohia te \left(x+1\right)\left(x-1\right). Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}. Pūrua 1.

$$x^{2}+2x+1-\left(x^{2}-1\right)$$

Hei kimi i te tauaro o x^{2}-1, kimihia te tauaro o ia taurangi.

$$x^{2}+2x+1-x^{2}+1$$

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

$$2x+1+1$$

Tāpirihia te 1 ki te 1, ka 2.

$$2x+2$$