Suzie999 was being nice to you. Usually we just say that we don't do your homework for you, but if you try and post your code here, we will usually try to point you in the right direction. So, get to work, and make an effort!
Define a class in C++ called complex which manipulates complex numbers. It should include the functions add(Complex) that adds two complex numbers, subtract(Complex) that subtracts two complex numbers and conjugate() functions, which calculates the complex conjugate of a complex number.