MATLAB: How to keep the complex root answers un-simplified

complex roots

I've created a formula to calculate complex roots in editor and have the following:
a=input('Enter the value for a: '); 
b=input('Enter the value for b: '); 
c=input('Enter the value for c: '); 
if b^2 > 4*a*c 
  root_1=(-b+sqrt(b^2-4*a*c))/2*a; 
  root_2=(-b-sqrt(b^2-4*a*c))/2*a; 
  fprintf('\n') 
  disp('Roots are real and distinct:')  
  fprintf(1,'Root1= %0.0f \n',root_1); 
  fprintf(1,'Root2= %0.0f \n',root_2);
elseif b^2 == 4*a*c
  root_1=-b/(2*a); 
  root_2=-b/(2*a); 
  fprintf('\n') 
  disp('Roots are repeated:') 
  fprintf(1,'Root1=Root2= %0.0f \n',root_1); 
elseif b^2 < 4*a*c 
  root_1=(-b/2*a)+(sqrt(4*a*c-b^2)/2*a); 
  root_2=(-b/2*a)-(sqrt(4*a*c-b^2)/2*a); 
  fprintf('\n') 
  disp('Roots are complex:') 
  fprintf(1,'Root1= %0.0f \n',root_1); 
  fprintf(1,'Root2= %0.0f \n',root_2); 
end
So far everything works fine but I don't want the last "elseif" command to simplify the imaginary equation.
For instance if my (a,b,c) are (1,8,25), respectfully, the answer that I would like to have is:
Root1= -4+3i 
Root2= -4-3i
How do I keep it this way or at least have the "i"?

Best Answer

fprintf(1,'Root1= %0.0f%+0.0fi\n', real(root_1), imag(root_1));
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