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Tohaina

\left(-3^{2}\right)I^{2}\times 4.7^{2}-\frac{3^{4}}{9}
Whakareatia te I ki te I, ka I^{2}.
-9I^{2}\times 4.7^{2}-\frac{3^{4}}{9}
Tātaihia te 3 mā te pū o 2, kia riro ko 9.
-9I^{2}\times 22.09-\frac{3^{4}}{9}
Tātaihia te 4.7 mā te pū o 2, kia riro ko 22.09.
-198.81I^{2}-\frac{3^{4}}{9}
Whakareatia te -9 ki te 22.09, ka -198.81.
-198.81I^{2}-\frac{81}{9}
Tātaihia te 3 mā te pū o 4, kia riro ko 81.
-198.81I^{2}-9
Whakawehea te 81 ki te 9, kia riro ko 9.