Define ⊕ on RXR by setting (a,b)⊕(c,d)=(ac−bd,ad+bc)Show that the function h from system (C,⋅)→(RxR,⊕) given by h(a+bi)=(a,b) is a one to one function from the set of complex numbers that is onto RxR and is operation perserving

I dont really have a background in complex numbers so i am kinda having difficulties