Whakaoti i te y=(7x^4-x+3)(-x^5+3)

$$y = ( 7 x ^ { 4 } - x + 3 ) ( - x ^ { 5 } + 3 )$$

Whakaoti mō y

$$y=\left(7x^{4}-x+3\right)\left(3-x^{5}\right)$$

Ngā Upane Otinga

Whakamahia te āhuatanga tohatoha hei whakarea te 7x^{4}-x+3 ki te -x^{5}+3.

$$y=7x^{4}\left(-x^{5}\right)+21x^{4}-x\left(-x^{5}\right)-3x+3\left(-x^{5}\right)+9$$

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

$$y=7x^{4}\left(-x^{5}\right)+21x^{4}+xx^{5}-3x+3\left(-x^{5}\right)+9$$

Hei whakarea i ngā pū o te pūtake kotahi, me tāpiri ō rātou taupū. Tāpiria te 1 me te 5 kia riro ai te 6.

$$y=7x^{4}\left(-x^{5}\right)+21x^{4}+x^{6}-3x+3\left(-x^{5}\right)+9$$

Hei whakarea i ngā pū o te pūtake kotahi, me tāpiri ō rātou taupū. Tāpiria te 4 me te 5 kia riro ai te 9.

$$y=7x^{9}\left(-1\right)+21x^{4}+x^{6}-3x+3\left(-1\right)x^{5}+9$$

Whakareatia te 7 ki te -1, ka -7.

$$y=-7x^{9}+21x^{4}+x^{6}-3x+3\left(-1\right)x^{5}+9$$

Whakareatia te 3 ki te -1, ka -3.

$$y=-7x^{9}+21x^{4}+x^{6}-3x-3x^{5}+9$$