Tīpoka ki ngā ihirangi matua
Whakaoti mō E
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Tautapa E
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Ngā Raru Ōrite mai i te Rapu Tukutuku

Tohaina

E=\frac{9}{25}+\left(\frac{5}{4}\right)^{-2}
Tātaihia te \frac{3}{5} mā te pū o 2, kia riro ko \frac{9}{25}.
E=\frac{9}{25}+\frac{16}{25}
Tātaihia te \frac{5}{4} mā te pū o -2, kia riro ko \frac{16}{25}.
E=1
Tāpirihia te \frac{9}{25} ki te \frac{16}{25}, ka 1.