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Whakaoti mō Y, x
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Tohaina

Y=2\left(-5+3\right)^{2}-4
Whakaarohia te whārite tuatahi. Me kōkuhu ngā uara tāupe mōhiotia ki te whārite.
Y=2\left(-2\right)^{2}-4
Tāpirihia te -5 ki te 3, ka -2.
Y=2\times 4-4
Tātaihia te -2 mā te pū o 2, kia riro ko 4.
Y=8-4
Whakareatia te 2 ki te 4, ka 8.
Y=4
Tangohia te 4 i te 8, ka 4.
Y=4 x=-5
Kua oti te pūnaha te whakatau.