3차항의계수를A라고하고세근을a,b,c라하면AX^3+Bx^2+Cx+D=0에서근과계수와의관계는a+b+c=-B/A ,ab+ac+bc=C/A , abc=-D/A입니다^^즐거운하루되세요~
[무물보AI] 답변 로딩중...