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10000\left(4x+0\times 2\right)=10\times \left(10\sqrt{2}\right)^{2}+400
Tātaihia te 10 mā te pū o 4, kia riro ko 10000.
10000\left(4x+0\right)=10\times \left(10\sqrt{2}\right)^{2}+400
Whakareatia te 0 ki te 2, ka 0.
10000\times 4x=10\times \left(10\sqrt{2}\right)^{2}+400
Ko te tau i tāpiria he kore ka hua koia tonu.
40000x=10\times \left(10\sqrt{2}\right)^{2}+400
Whakareatia te 10000 ki te 4, ka 40000.
40000x=10\times 10^{2}\left(\sqrt{2}\right)^{2}+400
Whakarohaina te \left(10\sqrt{2}\right)^{2}.
40000x=10\times 100\left(\sqrt{2}\right)^{2}+400
Tātaihia te 10 mā te pū o 2, kia riro ko 100.
40000x=10\times 100\times 2+400
Ko te pūrua o \sqrt{2} ko 2.
40000x=10\times 200+400
Whakareatia te 100 ki te 2, ka 200.
40000x=2000+400
Whakareatia te 10 ki te 200, ka 2000.
40000x=2400
Tāpirihia te 2000 ki te 400, ka 2400.
x=\frac{2400}{40000}
Whakawehea ngā taha e rua ki te 40000.
x=\frac{3}{50}
Whakahekea te hautanga \frac{2400}{40000} ki ōna wāhi pāpaku rawa mā te tango me te whakakore i te 800.