Whakaoti i te -x(x-72)(x-156)

$$- x ( x - 72 ) ( x - 156 )$$

Aromātai

$$-x\left(x-156\right)\left(x-72\right)$$

Ngā Upane Otinga

Whakamahia te āhuatanga tohatoha hei whakarea te -x ki te x-72.

$$\left(\left(-x\right)x-72\left(-x\right)\right)\left(x-156\right)$$

Whakareatia te -72 ki te -1, ka 72.

$$\left(\left(-x\right)x+72x\right)\left(x-156\right)$$

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o \left(-x\right)x+72x ki ia tau o x-156.

$$\left(-x\right)x^{2}-156\left(-x\right)x+72x^{2}-11232x$$

Whakareatia te -156 ki te -1, ka 156.

$$\left(-x\right)x^{2}+156xx+72x^{2}-11232x$$

Whakareatia te x ki te x, ka x^{2}.

$$\left(-x\right)x^{2}+156x^{2}+72x^{2}-11232x$$

Pahekotia te 156x^{2} me 72x^{2}, ka 228x^{2}.

$$\left(-x\right)x^{2}+228x^{2}-11232x$$

Hei whakarea i ngā pū o te pūtake kotahi, me tāpiri ō rātou taupū. Tāpiria te 1 me te 2 kia riro ai te 3.

$$-x^{3}+228x^{2}-11232x$$

Whakaroha

$$-\left(x^{3}-228x^{2}+11232x\right)$$

Ngā Upane Otinga

Whakamahia te āhuatanga tohatoha hei whakarea te -x ki te x-72.

$$\left(\left(-x\right)x-72\left(-x\right)\right)\left(x-156\right)$$

Whakareatia te -72 ki te -1, ka 72.

$$\left(\left(-x\right)x+72x\right)\left(x-156\right)$$

Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o \left(-x\right)x+72x ki ia tau o x-156.

$$\left(-x\right)x^{2}-156\left(-x\right)x+72x^{2}-11232x$$

Whakareatia te -156 ki te -1, ka 156.

$$\left(-x\right)x^{2}+156xx+72x^{2}-11232x$$

Whakareatia te x ki te x, ka x^{2}.

$$\left(-x\right)x^{2}+156x^{2}+72x^{2}-11232x$$

Pahekotia te 156x^{2} me 72x^{2}, ka 228x^{2}.

$$\left(-x\right)x^{2}+228x^{2}-11232x$$

Hei whakarea i ngā pū o te pūtake kotahi, me tāpiri ō rātou taupū. Tāpiria te 1 me te 2 kia riro ai te 3.

$$-x^{3}+228x^{2}-11232x$$