답변:ax3+bx2+2cx+d=0(a≠0)은,양변을a로나누면x3의계수를1로만들수있다.x3+px2+qx+r=0(여기서p=b/a,q=c/a,r=d/a)x=y-(p/3)로놓고식에대입
[무물보AI] 답변 로딩중...