√ X + √ Y = 5 3 √ X - √ Y = 12 ----------------- √ X = A ; A > 0 √ Y = B ; B > 0 ----------------- A + B = 5 3A - B = 12 --------------- 4A = 17 A = 4,25 ------------- 4,25 + B = 5 B = 0,75 ------------- √ X = A √ X = 4,25 X = 18,0625 ------------- √ Y = B √ Y = 0,75 Y = 0,5625 -------------- Ответ ( 18,0625 ; 0,5625 )