Whakaoti mō x
x=12
Graph
Tohaina
Kua tāruatia ki te papatopenga
16=8^{2}+2\left(-2\right)x
Tātaihia te 4 mā te pū o 2, kia riro ko 16.
16=64+2\left(-2\right)x
Tātaihia te 8 mā te pū o 2, kia riro ko 64.
16=64-4x
Whakareatia te 2 ki te -2, ka -4.
64-4x=16
Whakawhitihia ngā taha kia puta ki te taha mauī ngā kīanga tau taurangi katoa.
-4x=16-64
Tangohia te 64 mai i ngā taha e rua.
-4x=-48
Tangohia te 64 i te 16, ka -48.
x=\frac{-48}{-4}
Whakawehea ngā taha e rua ki te -4.
x=12
Whakawehea te -48 ki te -4, kia riro ko 12.
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