Whakaoti mō f_2
f_{2}=-\frac{6-7x}{x^{2}}
x\neq 0
Whakaoti mō x (complex solution)
\left\{\begin{matrix}x=\frac{\sqrt{49-24f_{2}}+7}{2f_{2}}\text{; }x=\frac{-\sqrt{49-24f_{2}}+7}{2f_{2}}\text{, }&f_{2}\neq 0\\x=\frac{6}{7}\text{, }&f_{2}=0\end{matrix}\right.
Whakaoti mō x
\left\{\begin{matrix}x=\frac{\sqrt{49-24f_{2}}+7}{2f_{2}}\text{; }x=\frac{-\sqrt{49-24f_{2}}+7}{2f_{2}}\text{, }&f_{2}\neq 0\text{ and }f_{2}\leq \frac{49}{24}\\x=\frac{6}{7}\text{, }&f_{2}=0\end{matrix}\right.
Graph
Tohaina
Kua tāruatia ki te papatopenga
f_{2}x^{2}+6=7x
Me tāpiri te 7x ki ngā taha e rua. Ko te tau i tāpiria he kore ka hua koia tonu.
f_{2}x^{2}=7x-6
Tangohia te 6 mai i ngā taha e rua.
x^{2}f_{2}=7x-6
He hanga arowhānui tō te whārite.
\frac{x^{2}f_{2}}{x^{2}}=\frac{7x-6}{x^{2}}
Whakawehea ngā taha e rua ki te x^{2}.
f_{2}=\frac{7x-6}{x^{2}}
Mā te whakawehe ki te x^{2} ka wetekia te whakareanga ki te x^{2}.
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