2 √ X - √ Y = 3
√ XY = 2
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√ X = A ( A > 0 )
√ Y = B ( B > 0 )
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2A - B = 3
AB = 2
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B = 2A - 3
A * ( 2A - 3 ) = 2
2A^2 - 3A - 2 = 0
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D = 9 + 16 = 25 ; √ D = 5
A1 = ( 3 + 5 ) : 4 = 2
A2 = ( 3 - 5 ) : 4 = - 1/2 ( < 0 )
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√ X = A ; √ X = 2 ; X = 4
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B = 2A - 3
B = 2 * 2 - 3 = 1
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√ Y = B ; √ Y = 1 ; Y = 1
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ОТВЕТ Х = 4 ; Y = 1