View Compilation Error

1_868_337_8942.cpp: In function 'int main()':
1_868_337_8942.cpp:22:31: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
   cout << (x + y)*(x - y/4 << endl;
                               ^
1_868_337_8942.cpp:22:35: error: expected ')' before ';' token
   cout << (x + y)*(x - y/4 << endl;
                                   ^