This is for a class. I am NOT asking for someone to do this for me. I just can't find out an issue and would appreciate it if anyone could point out its cause.

This is the program.

My problem is that, no matter the variables, I always get the last else statement as the answer "The roots are complex...." even when I KNOW they're real or equal. Can't see why. Any help?Code:int main(void) { //Variable declaration double a, b, c, discriminant, r1, r2; //Display title prompt printf("This program finds the roots of the quadratic equation.\n"); //Prompt user for coefficients of the quadratic equation printf("Input the a, b, and c coefficients of the quadratic equation\n in this form: (a)x^2 + (b)x + (c) \n"); //Read user values and assign to appropriate variables scanf("%dx^2+%dx+%d", &a, &b, &c); //Find root type discriminant = (b*b-4*a*c); //Find roots using the variables and display if (discriminant>0) { r1 = -b+sqrt(discriminant)/(2*a); r2 = +b+sqrt(discriminant)/(2*a); printf("The two roots are real: "); printf("%d %d\n"); } else if (discriminant==0) { r1 = -b+sqrt(discriminant)/(2*a); r2 = +b+sqrt(discriminant)/(2*a); printf("The two roots are equal: "); printf("%d %d\n"); } else { r1 = -b+sqrt(discriminant)/(2*a); r2 = +b+sqrt(discriminant)/(2*a); printf("The two roots are complex and may not be correct: "); printf("%d %d\n"); } //Termination statements system ("PAUSE"); return 0; }