~♥مساعدة من فضلكم♥~

[sonia rouddem]

السلام1

تمرين


حل في IR² الجملة التالية :

(x².x-y².y=7(x-y

(x².x+y².y=5(x+y


:confused::confused::

[sonia rouddem]

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[sonia rouddem]

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[farouke17]

http://im19.gulfup.com/5icP1.bmp (http://www.gulfup.com/?IpyCya)

[sonia rouddem]

merci beaucoup

[sonia rouddem]

thank youuuuuuuu :)