[질문] 2006년교육청3월고1모의고사수리영역26번문제해설좀

이차항의계수2,1,3을두근이차방정식2(x-1)(x-3)＝0 2x제곱-3x+6＝0 ∴b＝6.이차항의계수2이고-1,2 두근2(x+1)(x-2)＝0,2x제곱-2x-4＝0∴a＝-2 a제곱+b제곱＝40