|
+5
|
$\left\{ \begin{array}{l}(3x+y).(x+3y).\sqrt{xy}=14\\ (x+y).(x^{2}+y^{2}+14xy)=36 \end{array} \right.$ $(x,y\in R)$
|
|
+5
|
$\begin{cases}x- \sqrt{y+1} =\frac{5}{2} \\ y + 2(x - 3)\sqrt{x+1} = -\frac{3}{4} \end{cases} $
|
|
+5
|
$\left\{ \begin{array}{l}(3x+y).(x+3y).\sqrt{xy}=14\\ (x+y).(x^{2}+y^{2}+14xy)=36 \end{array} \right.$ $(x,y\in R)$
|