Whakaoti mō x
x=\frac{y}{2}+\frac{9}{2y}
y\neq 0
Whakaoti mō y (complex solution)
y=\sqrt{x^{2}-9}+x
y=-\sqrt{x^{2}-9}+x
Whakaoti mō y
y=\sqrt{x^{2}-9}+x
y=-\sqrt{x^{2}-9}+x\text{, }|x|\geq 3
Graph
Tohaina
Kua tāruatia ki te papatopenga
-2xy+9=-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.
-2xy=-y^{2}-9
Tangohia te 9 mai i ngā taha e rua.
\left(-2y\right)x=-y^{2}-9
He hanga arowhānui tō te whārite.
\frac{\left(-2y\right)x}{-2y}=\frac{-y^{2}-9}{-2y}
Whakawehea ngā taha e rua ki te -2y.
x=\frac{-y^{2}-9}{-2y}
Mā te whakawehe ki te -2y ka wetekia te whakareanga ki te -2y.
x=\frac{y}{2}+\frac{9}{2y}
Whakawehe -y^{2}-9 ki te -2y.
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