Whakaoti i te -3(2+y)^2+y(y-2)

$$- 3 ( 2 + y ) ^ { 2 } + y ( y - 2 )$$

Aromātai

$$-2\left(y+1\right)\left(y+6\right)$$

Ngā Upane Otinga

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

$$-3\left(4+4y+y^{2}\right)+y\left(y-2\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te -3 ki te 4+4y+y^{2}.

$$-12-12y-3y^{2}+y\left(y-2\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te y ki te y-2.

$$-12-12y-3y^{2}+y^{2}-2y$$

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

$$-12-12y-2y^{2}-2y$$

Pahekotia te -12y me -2y, ka -14y.

$$-12-14y-2y^{2}$$

Whakaroha

$$-2y^{2}-14y-12$$

Ngā Upane Otinga

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

$$-3\left(4+4y+y^{2}\right)+y\left(y-2\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te -3 ki te 4+4y+y^{2}.

$$-12-12y-3y^{2}+y\left(y-2\right)$$

Whakamahia te āhuatanga tohatoha hei whakarea te y ki te y-2.

$$-12-12y-3y^{2}+y^{2}-2y$$

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

$$-12-12y-2y^{2}-2y$$

Pahekotia te -12y me -2y, ka -14y.

$$-12-14y-2y^{2}$$