Whakaoti mō x
x=\frac{y^{2}+8}{2}
Whakaoti mō y (complex solution)
y=-\sqrt{2\left(x-4\right)}
y=\sqrt{2\left(x-4\right)}
Whakaoti mō y
y=\sqrt{2\left(x-4\right)}
y=-\sqrt{2\left(x-4\right)}\text{, }x\geq 4
Graph
Tohaina
Kua tāruatia ki te papatopenga
-2x+8=-y^{2}
Tangohia te y^{2} mai i ngā taha e rua. Ko te tau i tango i te kore ka hua ko tōna korenga.
-2x=-y^{2}-8
Tangohia te 8 mai i ngā taha e rua.
\frac{-2x}{-2}=\frac{-y^{2}-8}{-2}
Whakawehea ngā taha e rua ki te -2.
x=\frac{-y^{2}-8}{-2}
Mā te whakawehe ki te -2 ka wetekia te whakareanga ki te -2.
x=\frac{y^{2}}{2}+4
Whakawehe -y^{2}-8 ki te -2.
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