How a change cpp to c#?please help

Question

#include <iostream>
using namespace std;

int MenentukanNilaiFungsi(int a,int b);
int main()
{
int x1,x2;
cout<<"Masukan Nilai X1: ";
cin>>x1;
cout<<"Masukan Nilai X2: ";
cin>>x2;
cout<<endl;
MenentukanNilaiFungsi(x1, x2);
}

int MenentukanNilaiFungsi(int a,int b)
{
int x1x2[] = {a,b};
int hasil[] = {0};
for(int i=0;i<2;i++)
{
cout<<i+1<<".X"<<i+1<<" = "<<x1x2[i]<<endl;
hasil[i]=2*(x1x2[i]*x1x2[i])+(7*x1x2[i])-4;
cout<<"f(x)=2x²+7x-4"<<endl;

Answer 1

Could you elaborate? If you want to change the language I would re-write it.