��.190 �� 11 �� (��)

�� #1

$�� 190. �� :1) {x^2+2xy+y^2=64, x-y=2};2) {9x^2-6xy+y^2=9, 2x^2+2xy-y^2=11};3) {x^2-xy=-6, y^2-xy=22};4) {3x^2+2y^2=18, 3x^2-2y^2=12};5)...$

�� , ��, �� 11 ��, ��:

190. �� :

1) {x^2+2xy+y^2=64, x-y=2};

2) {9x^2-6xy+y^2=9, 2x^2+2xy-y^2=11};

3) {x^2-xy=-6, y^2-xy=22};

4) {3x^2+2y^2=18, 3x^2-2y^2=12};

5) {xy-y=-12, 5x-xy=1};

6) {x^2+4y^2=8, xy=2}.

*�� .

(��)

*�� , ��