Hate to do double threads but I felt this was a totally different issue that needed to be addressed. Here goes:

Code:
#include <iostream>
#include <cmath>
using namespace std;

float Quad(float x, float y, float z);

int main() {
    
    float a;
    float b;
    float c;
    float funcvarb;
    
    cout << "\tQuadratic Formula is Fun!! (that's why this is doing it for you) "<< endl;
    cout << "\t\tInput the coefficients to the quadratic equation!" << endl;
    cout << "(A)X^2 input a please" ;
    cin >> a;
    cout << "\n(B)X   input b please" ;
    cin >> b;
    cout << "\n(C)    input c please" ;
    cin >> c;
    
    funcvarb = Quad(a, b, c);
    
    cout << "X = " << funcvarb << endl;
    cin.get();
    return 0;
}

float Quad(float x, float y, float z) {
      float plusanswer;
      float minusanswer;
      plusanswer = ((-y + sqrt((y*y) - 4(x)(z)))/2x)
      minusanswer = ((-y - sqrt((y*y) - 4(x)(z)))/2x)
      cin.get();
      return (plusanswer, minusanswer);
      }
I had the idea of making the Quadratic formula work...but you know how that goes. Also, I want to know if i can let it do imaginary by :
let sqrt(-1) = i

Something of that nature. Whatever. I just had a mere idea of how to implement this. Let me tell you the errors!
Basically the only thing is that it says i can't use 4 and 2 as a function because when i say
Code:
4(x)(z)
it assumes it's a function. How do I fix this? Much help is appreciated. I hope I have good structure and everything