A quadratic equation has the form ax^2+bx+c=0 where x is an unknown, and a, b, c represent values which in this c++ program will be supplied by the user.

*Also Read: C++ Program To compute least common multiple*#include<iostream.h> #include<conio.h> #include<math.h> void main() { float a,b,c,d,x1,x2; cout<<"Enter the value of a: "; cin>>a; cout<<"Enter the value of b: "; cin>>b; cout<<"Enter value of c: "; cin>>c; d=b*b-4*a*c; if(d==0) { x1=(-b)/(2*a); x2=root1; cout<<"The Roots are real & equal"; } else if(d>0) { x1=-(b+sqrt(d))/(2*a); x2=-(b-sqrt(d))/(2*a); cout<<"the Roots are real & distinct"; } else { x1=(-b)/(2*a); x2=sqrt(-d)/(2*a); cout<<"Roots are imaginary"; } cout<<x1<<" "<<x2; }

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