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

$$(x+1)(x-1)(x+2)(x-1)$$

Aromātai

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

Ngā Upane Otinga

Whakareatia te x-1 ki te x-1, ka \left(x-1\right)^{2}.

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

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

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

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o x+1 ki ia tau o x^{2}-2x+1.

$$\left(x^{3}-2x^{2}+x+x^{2}-2x+1\right)\left(x+2\right)$$

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

$$\left(x^{3}-x^{2}+x-2x+1\right)\left(x+2\right)$$

Pahekotia te x me -2x, ka -x.

$$\left(x^{3}-x^{2}-x+1\right)\left(x+2\right)$$

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o x^{3}-x^{2}-x+1 ki ia tau o x+2.

$$x^{4}+2x^{3}-x^{3}-2x^{2}-x^{2}-2x+x+2$$

Pahekotia te 2x^{3} me -x^{3}, ka x^{3}.

$$x^{4}+x^{3}-2x^{2}-x^{2}-2x+x+2$$

Pahekotia te -2x^{2} me -x^{2}, ka -3x^{2}.

$$x^{4}+x^{3}-3x^{2}-2x+x+2$$

Pahekotia te -2x me x, ka -x.

$$x^{4}+x^{3}-3x^{2}-x+2$$

Whakaroha

$$x^{4}+x^{3}-3x^{2}-x+2$$

Ngā Upane Otinga

Whakareatia te x-1 ki te x-1, ka \left(x-1\right)^{2}.

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

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

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

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o x+1 ki ia tau o x^{2}-2x+1.

$$\left(x^{3}-2x^{2}+x+x^{2}-2x+1\right)\left(x+2\right)$$

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

$$\left(x^{3}-x^{2}+x-2x+1\right)\left(x+2\right)$$

Pahekotia te x me -2x, ka -x.

$$\left(x^{3}-x^{2}-x+1\right)\left(x+2\right)$$

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o x^{3}-x^{2}-x+1 ki ia tau o x+2.

$$x^{4}+2x^{3}-x^{3}-2x^{2}-x^{2}-2x+x+2$$

Pahekotia te 2x^{3} me -x^{3}, ka x^{3}.

$$x^{4}+x^{3}-2x^{2}-x^{2}-2x+x+2$$

Pahekotia te -2x^{2} me -x^{2}, ka -3x^{2}.

$$x^{4}+x^{3}-3x^{2}-2x+x+2$$

Pahekotia te -2x me x, ka -x.

$$x^{4}+x^{3}-3x^{2}-x+2$$