ptb1.cpp

examples C,c++ codes programs

/* giai bien luan phuong trinh bac 1 ax+b=0 */
#include<stdio.h>
#include<conio.h>
void main()
{

float x,a,b;
printf("Nhap vao he so a va b : ");
scanf("%f%f", &a, &b) ;
if (a==0)
	{
	if(b!=0)
	printf("PTVN");
	else printf("PTVSN");
	}
else
	{
	x=-b/a;
	printf(" PT co nghiem la %f",x);
	}
getch();
}