ປະເມີນ (complex solution)
y_{1}=x^{2}-6x+7yy_{2}\text{ and }x^{2}-6x+7yy_{2}=7+5x-x^{2}
ແກ້ສຳລັບ y_2
\left\{\begin{matrix}y_{2}=-\frac{x^{2}-6x-y_{1}}{7y}\text{, }&y\neq 0\text{ and }y_{1}=7+5x-x^{2}\\y_{2}\in \mathrm{R}\text{, }&\left(y_{1}=\frac{17-\sqrt{177}}{8}\text{ and }y=0\text{ and }x=\frac{\sqrt{177}+11}{4}\right)\text{ or }\left(y_{1}=\frac{\sqrt{177}+17}{8}\text{ and }y=0\text{ and }x=\frac{11-\sqrt{177}}{4}\right)\end{matrix}\right,
Graph
ແບ່ງປັນ
ສໍາເນົາຄລິບ
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