Whakaoti i te (3r^2+5t^2)(3r^2-5t^2)

$$( 3 r ^ { 2 } + 5 t ^ { 2 } ) ( 3 r ^ { 2 } - 5 t ^ { 2 } )$$

Aromātai

$$9r^{4}-25t^{4}$$

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}.

$$\left(3r^{2}\right)^{2}-\left(5t^{2}\right)^{2}$$

Whakarohaina te \left(3r^{2}\right)^{2}.

$$3^{2}\left(r^{2}\right)^{2}-\left(5t^{2}\right)^{2}$$

Hei hiki pū ki tētahi pū anō, me whakarea ngā taupū. Me whakarea te 2 me te 2 kia riro ai te 4.

$$3^{2}r^{4}-\left(5t^{2}\right)^{2}$$

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

$$9r^{4}-\left(5t^{2}\right)^{2}$$

Whakarohaina te \left(5t^{2}\right)^{2}.

$$9r^{4}-5^{2}\left(t^{2}\right)^{2}$$

Hei hiki pū ki tētahi pū anō, me whakarea ngā taupū. Me whakarea te 2 me te 2 kia riro ai te 4.

$$9r^{4}-5^{2}t^{4}$$

Tātaihia te 5 mā te pū o 2, kia riro ko 25.

$$9r^{4}-25t^{4}$$

Whakaroha

$$9r^{4}-25t^{4}$$

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}.

$$\left(3r^{2}\right)^{2}-\left(5t^{2}\right)^{2}$$

Whakarohaina te \left(3r^{2}\right)^{2}.

$$3^{2}\left(r^{2}\right)^{2}-\left(5t^{2}\right)^{2}$$

Hei hiki pū ki tētahi pū anō, me whakarea ngā taupū. Me whakarea te 2 me te 2 kia riro ai te 4.

$$3^{2}r^{4}-\left(5t^{2}\right)^{2}$$

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

$$9r^{4}-\left(5t^{2}\right)^{2}$$

Whakarohaina te \left(5t^{2}\right)^{2}.

$$9r^{4}-5^{2}\left(t^{2}\right)^{2}$$

Hei hiki pū ki tētahi pū anō, me whakarea ngā taupū. Me whakarea te 2 me te 2 kia riro ai te 4.

$$9r^{4}-5^{2}t^{4}$$

Tātaihia te 5 mā te pū o 2, kia riro ko 25.

$$9r^{4}-25t^{4}$$