e citesc de la tastatura trei numere intregi A, B si C. Sa se calculeze valoarea urmatoarelor expresii:
E1 = a + b - (2 * c)
E2 = 2 * a * c
E3 = (a + b) * (a - c)
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#include <iostream>
using namespace std;
main()
{
int e1=0,e2=0,e3=0;
int a,b,c;
cout<<"a="<<' ';cin>>a;
cout<<"b="<<' ';cin>>b;
cout<<"c="<<' ';cin>>c;
e1=(a+b)-(2*c);
e2=2*a*c;
e3=(a+b)*(a-c);
cout<<"e1="<<' '<<e1<<endl;
cout<<"e2="<<' '<<e2<<endl;
cout<<"e3="<<' '<<e3<<endl;
}