Whakaoti mō x (complex solution)
\left\{\begin{matrix}x=\frac{\sqrt{49c^{4}+4600c^{2}+490000}-7c^{2}-500}{2\left(c^{2}-100\right)}\text{; }x=-\frac{\sqrt{49c^{4}+4600c^{2}+490000}+7c^{2}+500}{2\left(c^{2}-100\right)}\text{, }&d=c\text{ and }a=c\text{ and }P=\frac{c}{10}\text{ and }b=c\text{ and }c\neq 10\text{ and }c\neq -10\\x=-\frac{6}{7P^{2}+5}\text{, }&\left(d=10\text{ and }c=10\text{ and }b=10\text{ and }a=10\text{ and }P=1\right)\text{ or }\left(d=-10\text{ and }c=-10\text{ and }b=-10\text{ and }a=-10\text{ and }P=-1\right)\end{matrix}\right.
Whakaoti mō x
\left\{\begin{matrix}x=\frac{\sqrt{49c^{4}+4600c^{2}+490000}-7c^{2}-500}{2\left(c^{2}-100\right)}\text{; }x=-\frac{\sqrt{49c^{4}+4600c^{2}+490000}+7c^{2}+500}{2\left(c^{2}-100\right)}\text{, }&d=c\text{ and }a=c\text{ and }P=\frac{c}{10}\text{ and }b=c\text{ and }|c|\neq 10\\x=-\frac{6}{7P^{2}+5}\text{, }&\left(d=-10\text{ and }c=-10\text{ and }b=-10\text{ and }P=-1\text{ and }a=-10\right)\text{ or }\left(d=10\text{ and }c=10\text{ and }b=10\text{ and }P=1\text{ and }a=10\right)\end{matrix}\right.
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