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由題意知①a²;+ab=-10,②b²;+ab=14,①+②得a²;+2ab+b²;=4→(a+b)²;=4→a+b=±2,①-②得a²;-b²;=-24→(a+b)(a-b)=-24,若a+b=2,則a-b=-12,可求出a=-5,b=7,ab=-35若a+b=-2,則a…
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