求二次方程的解#include"stdio.h"#include"math.h"void main(){float a,b,c,p,q,x1,x2;scanf("%f,%f,%f\n",&a,&b,&c);p=sqrt(b*b-4*a*c)/2;q=-b/2;x1=p+q;x2=p-q;printf("x1=%1.1f,x2=%1.1f\n",x1,x2);}
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