**#include**<math.h>

**int** **main**(){

**int** a,b,c;

**double** x,y,d;

printf("Enter a
, b , c of quadratic equation: ");

scanf("%d%d%d",&a,&b,&c);

//calculating
the value of d

d
= sqrt(b * b - 4 * a * c);

//Checking
real solution is possible or not

**if**(d<0){

printf("Real
number root is not possible");

exit(1);

}

//finding the
root of quadractic equation

x
= (-b + d) / 2 * a;

y
= (-b - d) / 2 * a;

//printing the
root of the quadractic equation

printf("Solution
of quadratic equation are %lf , %lf",x,y);

**return** 0;

}

## 3 comments:

in gcc compiler(ubuntu 15.03) it is not working

Help me to solve this,,...

Declare and write a function that changes the value of the passed in argument, so that the caller of the function gets the changes from outside.

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