consider exponential signal x[n]=2(?)^n, write codes to define signal x[n] and its even and odd part as well as summation of even and odd part of signal. Use subplot and plot x[n], Ev(x[n]), Od(x[n]) and Ev[x[n]+Od(x[n]).

Where ?=1.5 and discrete time vector is defined (with step 1) from -10 to 10.

please use matlab code!