Whakaoti mō y
y=-\left(x^{2}+4\right)
x\neq 1
Whakaoti mō x (complex solution)
\left\{\begin{matrix}\\x=i\sqrt{y+4}\text{, }&\text{unconditionally}\\x=-i\sqrt{y+4}\text{, }&y\neq -5\end{matrix}\right.
Whakaoti mō x
\left\{\begin{matrix}x=-\sqrt{-y-4}\text{, }&y\leq -4\\x=\sqrt{-y-4}\text{, }&y\neq -5\text{ and }y\leq -4\end{matrix}\right.
Graph
Tohaina
Kua tāruatia ki te papatopenga
y=\frac{-\left(-x+1\right)\left(x^{2}+4\right)}{-x+1}
Unuhia te tohu tōraro i roto o x-1.
y=-\left(x^{2}+4\right)
Me whakakore tahi te -x+1 i te taurunga me te tauraro.
y=-x^{2}-4
Hei kimi i te tauaro o x^{2}+4, kimihia te tauaro o ia taurangi.
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