Whakaoti mō f (complex solution)
\left\{\begin{matrix}\\f=4\text{, }&\text{unconditionally}\\f\in \mathrm{C}\text{, }&x=0\end{matrix}\right.
Whakaoti mō x (complex solution)
\left\{\begin{matrix}\\x=0\text{, }&\text{unconditionally}\\x\in \mathrm{C}\text{, }&f=4\end{matrix}\right.
Whakaoti mō f
\left\{\begin{matrix}\\f=4\text{, }&\text{unconditionally}\\f\in \mathrm{R}\text{, }&x=0\end{matrix}\right.
Whakaoti mō x
\left\{\begin{matrix}\\x=0\text{, }&\text{unconditionally}\\x\in \mathrm{R}\text{, }&f=4\end{matrix}\right.
Graph
Tohaina
Kua tāruatia ki te papatopenga
xf=4x
He hanga arowhānui tō te whārite.
\frac{xf}{x}=\frac{4x}{x}
Whakawehea ngā taha e rua ki te x.
f=\frac{4x}{x}
Mā te whakawehe ki te x ka wetekia te whakareanga ki te x.
f=4
Whakawehe 4x ki te x.
fx-4x=0
Tangohia te 4x mai i ngā taha e rua.
\left(f-4\right)x=0
Pahekotia ngā kīanga tau katoa e whai ana i te x.
x=0
Whakawehe 0 ki te -4+f.
xf=4x
He hanga arowhānui tō te whārite.
\frac{xf}{x}=\frac{4x}{x}
Whakawehea ngā taha e rua ki te x.
f=\frac{4x}{x}
Mā te whakawehe ki te x ka wetekia te whakareanga ki te x.
f=4
Whakawehe 4x ki te x.
fx-4x=0
Tangohia te 4x mai i ngā taha e rua.
\left(f-4\right)x=0
Pahekotia ngā kīanga tau katoa e whai ana i te x.
x=0
Whakawehe 0 ki te -4+f.
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