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

$$( 2 x - y + 3 ) ( 2 x - y - 3 )$$

Aromātai

$$\left(2x-y\right)^{2}-9$$

Ngā Upane Otinga

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}, ina a=2x-y me b=3.

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

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

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

Tātaihia te 3 mā te pū o 2, kia riro ko 9.

$$4x^{2}-4xy+y^{2}-9$$

Whakaroha

$$4x^{2}-4xy+y^{2}-9$$

Ngā Upane Otinga

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}, ina a=2x-y me b=3.

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

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

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

Tātaihia te 3 mā te pū o 2, kia riro ko 9.

$$4x^{2}-4xy+y^{2}-9$$