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[tranquocluat_ht]

GHPT
$ \left\{\begin{array}{l}x^3+3xy^2=-49 \\ x^2-8xy+y^2=8y-17x\end{array}\right. $

Edited by inhtoan, 08-08-2009 - 07:41.

[phuongpro]

GHPT
$ \left\{\begin{array}{l}x^3+3xy^2=-49 {\and} x^2-8xy+y^2=8y-17x\end{array}\right. $

Có chắc đề đúng không vậy bạn?