Whakaoti i te 2(16/25)^2-1

$$2 ( \frac { 16 } { 25 } ) ^ { 2 } - 1$$

Aromātai

$$-\frac{113}{625}=-0.1808$$

Ngā Upane Otinga

Tātaihia te \frac{16}{25} mā te pū o 2, kia riro ko \frac{256}{625}.

$$2\times \frac{256}{625}-1$$

Tuhia te 2\times \frac{256}{625} hei hautanga kotahi.

$$\frac{2\times 256}{625}-1$$

Whakareatia te 2 ki te 256, ka 512.

$$\frac{512}{625}-1$$

Me tahuri te 1 ki te hautau \frac{625}{625}.

$$\frac{512}{625}-\frac{625}{625}$$

Tā te mea he rite te tauraro o \frac{512}{625} me \frac{625}{625}, me tango rāua mā te tango i ō raua taurunga.

$$\frac{512-625}{625}$$

Tangohia te 625 i te 512, ka -113.

$$-\frac{113}{625}$$

Tauwehe

$$-\frac{113}{625} = -0.1808$$