[질문] (x+1)(x-3)-(x+1)(3x-2)의인수를모두모두구해주세용

(x+1)이공통인수이므로(x+1)(x-3-3x+2)=(x+1)(-2x-1)=-(x+1)(2x+1)입니다이것이인수분해된식으로인수를한눈에알아볼수있습니다인수분해는중요한데..열공하세요^^