$\left\{\begin{matrix} (x-y)(x^{2}-y^{2}-2)=5 & & \\ x^{2}-3y^{2}+11=0 & & \end{matrix}\right.$
$\left \{ (x-y)(x^{2}-y^{2}-2)=5 \right.$
Started By nguyenkhai29, 22-07-2015 - 08:03
#1
Posted 22-07-2015 - 08:03
#3
Posted 22-07-2015 - 14:33
làm sao tìm số $\frac{2}{3}$ và $\frac{4}{27}(4x+5)$ hay vậy
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